Congrats on your 625, great gun. I've bought full- and half-moon clips from dillon and the demooning tool for the full-moon clips. The plastic tool broke on the first clip and the clip was bent to hell, sent the tool back, received a new one and it also broke and bent another clip. Through the tool in the trash and gave the clips away.
I kept all the half-moons and even bought more from S&W and they all seem to work fine and have yet to bend one. I can load and unload the clips by hand without using a cumbersome tool. I like the fact that I can top off after firing three rounds as long as those rounds are used from the same clip.