I am certainly no expert on smallies. The last 2 years i have been on two kayak trips for them( 1 before spawn and one after) We did real well with crayfish flies hopped slowly down stream in the counter flow edges of deep holes on the first trip when it was cold and rainy. On the second trip tan or light medium brown over white clousers driftedwith an occational twitch were the ticket.
Both of this trips were in the earlier part of season and the fish were not looking up or chasing aggressively.