A little late to the party, but...

I have a 38" and a 40" SWK. The 40" is on the tightest hole, but I like how the the apron wraps around my front. I intend to lose weight to fit the 38" again, but I think I'll just move the buckles & straps on the 40", rather than stop wearing it, because it fits me better now than the 38" did when its waist fit me.

(according to others on this board, it's easy to move the buckles and straps)