I also have two DTB rails, but I haven’t installed them on the rifle yet. They look to be great quality. I’d recommend his rail, he does great work!
I installed the DTB top rail tonight. It fits very well! Highly recommended.
Splitting the receiver case in half to install the rail, is a real #####. When I re-installed the spring for the cocking tube, now it seems harder to pull back and is also noisy. This gun certainly is a love/hate relationship.