As long as you have flash bombs it doesn't seem like Tigrex should take very long for SnS:I've been playing since the day it was released, been soloing everything up to HR7 with various Insect Glaives.
Yesterday, I started using the SnS and... wow!
The mobility, the item usage without sheating, quick attacks, quick shield.
I like everything about it BUT I think the damage output is way lower than the IG. Even when Sleep Bombing (because my strongest SnS so far has Sleep Status), my B.Tigrex times are at least 10 minutes longer with SnS than with with my IG, as an example.
I'm probably still too new to the weapon, though...
http://www.youtube.com/watch?v=SjPcOfJnKiA
lol