Instead of having the melds back and having people glitch weapons and armor with them, why not introduce 30 day platinum refinining stones. Just sell them the same way/price as bonus books of melding where of course you get your chance at getting +1, +2, or +3. Also, edit the books of unmeld to be able to remove the prs's that way if you get a better piece of gear and cant wait ur 30 days to sell ur old gear, you can just pop off the prs
I know I would love this because then I wouldnt have to constantly hunt down prs at cheap prices each day (or every week depending on my luck at finding good prices) and I could save money. Sounds win-win to me, melds virtually back, no more glitching them, and you still get ur c2 covers.