I've noticed you're editing some of the stats for grandmaster sets or others. For now, please don't edit those any further as there appears to be an issue going on with them. I added those stats directly from the game and have since went in to doublecheck some in case I had done a typo but some are clearly a set number in my game (for instance, the grandmaster ursine torusers' elemental damage is 25% for me, not 28%). I'm hoping it's not due to a level but can you check yours to see what level the gear is at? I tested this one at a level 40.
No I don't think it works based on level, the boosts are probably set. Like White Raffard's Decoction restores a higher % of HP on NG+.
Of course it does beg the question whether all the non-legendary sets get these boost after starting a NG+? Although I highly doubt it, I think these changes only occure for Master and Grandmaster sets.
You know I still have my mastercrafted wolven armor in storage I could check if it's stats changed.
Ok I checked the stats of all armor sets and it seems that only the Grandmaster sets get these minor boosts. As the Mastercrafter wolven was unchanged and same goes for the Viper set from HoS.