Trying to find a quality extended pin box

I have the Pop-it brand (If I recall correctly). Mine is a 5-6 inch offset, and it works perfectly for me with my average sized pin-box and shortbed pickup. No evidence of frame weld cracking as of yet (I inspect during and after every trip because I'm paranoid), and I've had it on for about 6 years. I would think that a short pin-box with a long adapter would be a good receipt. From what I've heard, people in the horse racing circuit do this to their vacation trailers with no problems. JMHO