Nice! One trick I do to quickly reacclimate myself to high rates of play and to learn to maintain consistency is to use music specifically chosen for a rhythm that matches the lock timings, but at the same time you can't get TOO attached to it or you'll have trouble manually locking. For example, The Darkness Nova from Legend of Mana matches Shirase 0-299 (exactly for 200-299, a frame off before) and Crazy Motorcycle from FF7 matches Shirase 300-499 (on half-beats).
From what I understand Texmaster doesn't properly implement the various aspects of TGM3's Master mode. On Cab, the game compensates for good play and COOLs by upping the internal speed grade prematurely. Like in the Jin8 GM video, he hits 20G and the second music at level 300, and the third music at Level 400. Going off wiki, he's at Shirase-like timings at level 500. Anyway, another unfortunate discrepancy is the subtle differences in game speed and timings that make breaking Torikan in Sudden just a touch easier than in actual TA Death. ShmupMAME also has a very very slight speed difference, but it's considered to not matter much in whether you'd actually perform the same on cab.
By the way, I beat up on SRS games a lot but I know they have their place and really don't mind playing them until it hits 20G, then I just want to put the controller down and walk away. The lack of rhythm and non-deterministic rotation makes playing excruciating.
