Hmm, I hadn't thought about the problems I'd cause if I moved my saddle. Everything has been fine in the pedaling dept so I guess I shouldn't mess with that.
When I was trying out the M-bars I installed them upside down and the rise really did feel better. I ended up installing them the "correct" way cos I figured if they were meant to be upside down they would have designed them like that. Silly me.
I'll try out the stem riser (since it's cheaper than a new stem) and hopefully that will make the difference. I'll go with a higher angled stem if not.
Thanks everyone.