I have Ahrends square conversion and rounded, finger grooved and straight... I love the JM grips, especially on that 625 - want another set for my 627. I did finally buy some 'Goodyears' - the excellent backstrap padding/recoil-absorbing Hogue .500 Magnum grips, as equipped on new .460/.500 Magnum S&Ws. They fit K, L, N, & X-frames - and eat up the minor .45 ACP recoil quite well - I know one fellow who swears by them on his 625 - and another who put them on his 696. They made my 629s 'fun' againStainz