Seth is a one man show, and he desperately need to expand to accommodate his growing business, this unfortunately leads to some ridiculously slow turn around times on his seats.
I had my Super Tenere seat done by Seth back in 2014. At the time I was living in Seattle so I rode the 600 miles from Seattle to Redding CA. He worked my seats while I waited, then rode back (in 600 miles of rain, not seattle rain, real rain). Hands down the highest quality seat I have had done at the lowest possible price. I have owned seats by Saddle man, Mustang, and Corbin. I was extremely happy with the quality and the price.
He is a difficult guy to lock down, but he is a honorable person, he will make good, it just may not be in a timely fashion.
I would not hesitate to have my FJR seat done by him, I would prefer a ride in, because it makes the seat an experience, but living in MN now, its not very practical. So maybe next winter I will send my FJR seat in to be done by the master seat builder Seth is.