ORIGINAL: Lnewqban
Did you check your down thrust angle?
If too much, you may be trimming for hands off with power, but the trim is lost when power is reduced for landing, and then the elevator is pushing the tail down.
There is no such thing as tail heavy, for any plane that can be controlled in flight.
Your plane may be less nose heavy or neutral, but even that would not cause a pitch up in landing.
I'll throw in a second vote to check your downthrust angle. I'm not saying to necessarily change it but a plane with too much downthrust will nose up when you cut power to land, the converse being true for too much upthrust.