You migh be right about the thinner blade!
I ordered a small insingo with polished blade straight from CR a while back. Two weeks ago they mailed me that Chris had decided not to polish the blade as this would thin it out to much!
This leaves open a few
Possibilities.
Either, the blade is thinner than the standard sebbie's! Or, due to the blade geometry the is a need for just that little bit of extra thickness!
As soon as I receive it, I'll try to make some decent shots!
Hope this helped
Grtzz,
NvG