I think I may have a set of the Stoney Point sticks but was not impressed with actual use.

I had a look at the crooked horn website but the photos of the sticks is not detailed enough to show what they are. I can't see any "cradle" in the photos???

You can make shooting sticks as complicated as you like. But 99.9% of those used in Africa follow a basic formula and this seems to work pretty well. The idea is often not to actually rest the forend of a rifle in the V but your hand. Though with a bolt action I admit I do rest the forend in the V and it works OK. With a double rifle you need to interpose your hand anyway in the V.

Also my personal preference is a tripod arrangement especially with a double. A bipod arrangement always seems less stable unless used for prone shots.

Wood and leather is also nice compared to metal and plastic.

The ones I was sent use this simple formula which actually works.

Even cheaper is to make a set yourself which also is not hard.

I find the more complicated the things are, the less actually usable they are.