I have found using my 3-5-2 that wingers are not contributing as much as before, trialing a few things though and might be getting somewhere, I think you are right though, an attacking tactic will surely be discovered that will rid us of these low scoring games.
Just scored 121 goals in 1st BSP season with york using my orginal 433 tactic. The key is playing two DM,s and one AMC in between them. Use my orginal top post and NOT my second one. the tweek doesnt work over a long period of time.
I'm using 4-3-1-2 tactic now, won the Eurocup with it, scoring sometimes 4 goals a match, conseding not much. But I will look how it develops in the coming seasons, and then I will release it here for you to try. It's an heavy attacking tactic though.