Sureloc......wouldn't use a free one
Axcel and CBE are both great.
I appreciate the machining and design of the axcels. The cbe (although crude) is a bulletproof, proven design.
My preference is axcel, mostly because I have a couple along with extra interchangeable blocks.
This is the biggest advantage. I can keep multiple scope sizes and pin setups, and switch whatever I want while maintaining 2nd and 3rd axis on each.
Another benefit is the rapid adjust....even though the cbe is fast and smooth.
You can go wrong with either.....but I give the edge to axcel.
If I were to categorize, the cbe is equal for 3D but loses in other target venues.
I just got the new achieve and sold an ax3000. Havent used it yet, but it looks to be a lighter, nicer upgrade over the ax series.