Trust me, Trick Room in BH is really restricting your options unless you go ahead and use base 90s. You're basically limited to Escavalier and Shuckle for common BH Pokemon, and good slowmons outside of them are things like Snorlax.
because everything runs max speed in bh, you can actually run even base 100s in tr, and youll stilll underspeed the majority of mons. i think trick room is actually a very interesting strategy and intend to build a tr team to try out when i have some time