Skills won't stick if I reload a save that had max skills with the trainer off
Use the "Max Exp" option and not the skill point cheat. Mass effect recalculates your number of skill points at every load/save screen and if the math doesn't work out it resets them to what they "should" be.
I would kinda like infinite research points so i dont have to waste time running every where to scan random objects i want to be able to build and test every weapon at max lvl
infinite credits should give you infinite research points just need to spend some first so trainer can find value.