Smith & Wesson has been offering V-Comp equipped firearms for more than 50 years now
The first one I recall is the Model 41 with it's 7 3/8" barrel. Back in the olden days we used to spray the Comp with Carter's Compensater Cleaner just before shooting. It made cleaning it MUCH easier, but that was in the 80s and I do not think that product is offered today. I used to buy it mail order from Hebard Guns. However there many are other cleaning products that can be substituted.
My second exposure to the V-Comp design was when I was shooting pin matches (I'm thinking the 90s)
This revolver firing 45 SUPER ammunition made a Very potent pin gun. The V-Comp was quite effective keeping the muzzle down for firing on the next pin.
Jacketed ammunition reduces the cleaning to hardly more than scrubbing a barrel. Lead bullets are another story. I am sure that today's coated lead projectiles would be a wonderful choice. I stayed away from plated bullets since the early ones would shed plating in the bore and it would try to exit the V-Comp. Our modern double plated bullets won't have that problem
I was happy to see the 627 offered in a V-Comp. 8 rounds of 357 Magnum
For some versatility, I have a second cylinder for this revolver chambered in 9x23 Winchester. The shorter cartridges in moon clips thicker than the ones used for 357 makes the reloads much faster while maintaining 357 Magnum performance. I was kind of envisioning an 8 round pin gun. I have never fired this revovler with the false muzzle installed, only the V-Comp
The 9x23 Winchester chambering allows all of the shorter cartridges to be loaded into moon clips and fired. This includes 38 SUPER, 38 ACP, 356TSW, 9x21, 9MM Parabellum, 380 ACP and others
I have not fired my newest V-Comp yet