I also had a great experience with B Nelson. Sent my CJ for peal in for a resole with the J Redenbach soles. Came back as good as new and I think these soles are going to last quite a long time. Highly recommend! Fast service too.
Not sure who you were asking Nore, but I don't think my pair changed much, if at all, following resole. I don't recall the waist being especially narrow beforehand either. The dimensions look the same to me but I didn't take measurements so could be wrong. I've worn the shoes twice now and they feel great.
Yes, the Peals were channeled when new but was not really concerned about that personally.
Regarding the white stitching - I just looked at a few pairs in my closet. The Aldens and C&J benchgrades both use white stitching.