If you like the Panzer & have the cash get a few of them but keep your XG Rhynos for the time being. IMO its best to putt with molds & plastics that are currently in regular production. Doing that makes it easy to get replacements & then you don't have to shell out a lot of money for CFR/OOP discs. If you save your XG Rhynos you can always go back to them if you really think they're a better fit to your putting style. If you do decide to stick with the Panzer then you won't be beating up your Rhynos & they'll be worth more money down the road, if you do decide to sell them. I recommend you find a mold & plastic you like & stick with even when your having a bad putting streak. Stick with one disc, learn it in all conditions & practicing with it. This will allow you to trust your disc, gain consistency & confidence. Changing putters frequently can only cause inconsistent putting & questioning if the putter your using is the right one. Get a few Panzers & if you like them then get a stack of them for putting practice & backup putters.