Not sure what is going on with Altamont. The only good thing they had going for them was availability/reasonable price, and now that's gone.
While the grips fit the guns, and depending on your perspective, look good, they are not designed for shooting. Which is appropriate for a company that started out making jewelry.
Every one of their "engineered wood" - aka polymer-infused plywood - designs is a departure in some manner from the S&W originals which they attempt to emulate. Nice for lookin' - like jewelry - but poor for shootin'.
Eg. The Altamont target grips which S&W puts on their classic line are too narrow and make magnum shooting painful. The original S&W real-wood "coke bottle" grips had girth which spread out the recoil, instead of directing it into the web of your hand.
Eg. The Altamont boot-style grips have a bizarre flat bottom with an abrupt square edge all around. When shooting a J-frame with +P loads, the corner of this edge whacks into your bottom finger every shot.
Eg. ALL of the Altamont grips with exposed backstraps have a square edge at the rear where the grips meet the backstrap, right at the web of your thumb. Once again, the grip is uncomfortable in the hand under mere handling, and under recoil becomes painful.
If these grips were designed, manufactured and tested by a SHOOTER, and not a jewelry-maker, these defects would be obvious, and be corrected. But in Altamont's case, they are solely for show. The modern "gunsumer" has no idea what correct revolver grips are supposed to feel like, so it all works out.
PS. Those of you thinking you will just do a little whittling and sanding to correct these defects... think again. The engineered wood used in these grips is not like solid natural wood, and is extremely hard - hand sanding has no effect. You will need to use a power micro-tool (eg Dremel) and a sanding wheel to remove any appreciable amount of material. ALSO... the engineered wood contains toxic chemicals as part of their manufacture, including various polymers and formaldehyde. Avoid breathing any of the material during removal, and a filter respirator is advised.
Just sayin'