I have or have had several. All tracker (686 size) frames. My buddy has the 4" 44 tracker and he really likes it. I had the 6.5 357 tracker and sold it because that extra inch really changes the balance. I later bought a 7" 686. I bought an aluminium frame 2.5" 45LC, yes a 5 shot 45 colt taurus tracker. Dirty ammo jams it up. I later bought the 6.5" 992 and the 3" 692. 22lr/ 22wmr and 357/ 9mm convertibles respectively.
I have
2.5" 45LC ultralight, 6.5" 992, 3" 692. I would trade them up for the 2.75" 69, two s&w to cover both the 22lr and 22wmr and the 2.5" 986. Unless somebody wants to trade me 4 $900 guns for my three $350 and $550 guns, I'm not selling any of them, probably ever.
Their convertibles are THAT much bang for the buck. Two guns, 4 calibers. That's not to mention that I have like a dozen 686,586,620,581, etc.