I just remembered that if you can get a SW base, you could bolt the Thompson post directly to it and not need the KH adapter, but you could use that Thompson&KH combo on a normal or UDC cf base.
I’ve heard the biggest benefit is the cf base is it’s a lot stiffer, but it is a bit lighter as well. I’ve never seen them side by side or heard of the weight difference, but I bet it’s close to 100 g.
If memory serves the TryAll is a bit lighter than the Creepy Crawler, but the two big reasons why most ride one or the other is availability and they feel significantly different. Compare on Sponge’s trial tire thread.
I think the TryAll and KH rims are close in weight and strength, but if you find yourself breaking rims regularly or have to retrue it everyother day and tired of it, take a weight penalty and get the solid TryAll rim (or just 13G spokes on the drilled, but I think it’s hard to get nipples for them).