Yaichu struggling against TR

Currently run Yaichu (Fake/GKnot/FBlast/Zap) with just like what core mons are meta (Gambit/Sneas/Chomp/Whims/Incin). However I've realized that I struggle offensively against trick room because I havent set up leads that can take out TR setters like farig/tomb. THis is partially because of moveset mistakes (i have been running low kick on gambit and spunch is my only dark time move, which means it struggles to kill farig/tomb for example, which means I cant get enough offensive pressure to prevent TR from going off.

Sneas runs standard fake/dire/combat/tect white herb unburden
chomp runs stomp/iron head/breaking swipe/rock slide life orb rough skin (i keep forgetitng to change sand veil to rough skin because I was running him with ttar but ill do it on next login)
whims runs blast/tailwind/tect/encore sash
gambit runs low kick (considering a change to kowtow cleave since Ive used low kick a total of one time), spunch, iron head, swords dance
incin runs blitz/parting/fake/wisp

so any advice regarding moves, EV's (same old EV's on these mons as the ones you commonly find on ladder right now), or pokemon swaps or how to lead into TR would be appreciated