Noob that I was, I didn't realize the stats were affected, got confused about what happened to my haste, spent loads of cash reforging back up to my haste cap, then had to do it all over again once I left to go raid XD
I'd like it very much if any changes you made to your gear 'inside' the proving grounds was free, and reset upon leaving.
We all have stats we reach for through reforging, Tanks DPS and heals. If those stats are going to be lowered through gear normalization, it can get really expensive getting your gear back up to those caps just for proving grounds.
I like this element a lot, just want it to be little more user friendly and less expensive =)
It should be a way to play with your gear and stats IMO, maybe even provide free gems or enchants to see how they affect your effectiveness, so you can then leave and go apply those changes to your gear.