Somebody help us please!!!
I'll try to replay it again sometime soon.
Here's some insta-tips I can try to offer, however.
Try a board with a hella tricks stat. Don't worry about speed or boost because you don't need either of those. With trick runs you should only be using boost if it's to get yourself massive air off a kicker. Otherwise, it's not a race, so don't boost. You want to spend a longer time on the track so you can get more tricks in! If you see your multiplier start to drop, it means you're going too slow, however. This is the game's internal "Flow" system that's meant to stop people from spamming certain terrain pieces or going back up the hill.
Buy a trick mod and equip it! The Tricks stat ties into your rotation speed and how easy it is to achieve Super TRICKY state. Having a higher Tricks stat means you're going to be rotating faster and getting into (and staying in) Super TRICKY easier!
Note: mods are one-time-use consumables. You can buy and equip them before every run to suit your needs. There are also mods for boost, speed, rewinds, and even gear mods!
Never lose your combo! If the little
>>>chevrons
<<< that surround TRICKY on the bottom of the screen are allowed to fill in, this means your combo is about to cash in. Do a board press (X or B, Standard controls) to keep your combo going. A more advanced and higher scoring tactic is to do tricks on flat land, which means jumping and pulling off a quick grab. Bigger and better tricks will keep your combo from expiring faster, so whenever possible, do a multi-input trick because it will make the combo expiration last longer. You get a bonus based on how many tricks are in your combo that grows higher the more tricks are in it, so you want to preserve your combo for as long as possible. High-level SSX players will have 100+ trick combos. You'll get there too, without even knowing it, as long as you stick to the game and focus on never losing your combo!
Multi-input tricks! Remember how the trick system works? Read StrikerObi's trick system break down, which is in post #2 of the OP, at the bottom of Essentials section!
Single-input tricks are not worth as much. Don't bother with them unless you have no time to do a better trick.
Spinning flips >>>> flips >>>>>> spins! And pre-loading + pre-winding to get better spins A rotational flip (a 360 backflip, for instance) is what you always want to aim for.
Pre-loading gets you a higher jump, but you don't have to hold it for a really long time to get your jumps super high. You can basically tap the jump button at the top of a kicker to get a good
pre-load in if you're pressed for time or just came around a sharp turn and didn't know the kicker was going to be there, for instance.
Pre-winding is the act of combining a directional button into your
pre-load; your steering is dampened during a
pre-load so that you can focus on your
pre-wind. You'll see your character spin their torso when
pre-winding. A good
pre-wind can get you more flips/spins/spinning flips, so remember to do it while you
pre-load!
Never duplicate tricks! As long as you put a trick A before doing trick B again, you can go in a pattern of, say, trick A, trick B, trick A, trick B, repeating ad infinitum and never once get a duplicate trick. "Dupes" aren't worth as many points or boost, so don't do them!
When in Super TRICKY, use your signature Uber as much as possible! It's the biggest and baddest trick you have! It's also worth the most points. So, using the above knowledge about avoiding dupes, spam it as much as possible. One high-level tactic is to "reload for sig Ubers," which means if you know you're going to be going off a big kicker in the distance and just did your sig Uber, do a flatland trick so that you can go off that big kicker and do your sig Uber without doing a dupe! And, was recommended before, do spinning flips (pre-loaded and pre-winded for maximum effect!) to get the most points out of your sig Uber!
Never "chain tricks" in air, but do chain grinds if your multiplier is not at 20x! Chaining tricks is not worth it. Do a grab and stick to it.
So don't try and mash buttons. Grinds, however, are great to mash if you're low on your multiplier. Get on a long rail, and using a 1-Mississippi cadence, switch up your grinds every second, while spinning.
Remember that to do the most valuable grind tricks you must double-tap one of your trick buttons button. (That's right, there are 6 regular grinds, then 6 TRICKY grinds, and 6 Super TRICKY grinds, if I've got things right.) Once you've got your multiplier to 20x, however, don't bother chaining your grinds together anymore; just stick to one. Also, red rail grinds aren't worth that many points so do not rely on them to get you points -- use them as a means to get your multiplier up and nothing else. Terrain grinds are worth much more because they take more skill to pull off. Remember that if you want to get off of a red rail, press the grind button and a direction on the left stick. To get off of terrain grinds, simply let go of the grind button and push the left stick in the direction you wish to dismount.
Rewind if you bail, cash your combo, do a dupe, or forget to do your sig Uber off a huge jump! If you're doing all of the above correctly, your combo bonuses and sig Uber value will outweigh the rewind penalty, so use rewind to squeeze out the best possible score!
Tweak EVERYTHING! You should be holding RT (tweak) when you lift off the ground -- each and every time -- because tweaking earns you more points than regular tricks!
Hope all of this helps!