So my takeaway from the thread so far is "what you want doesn't exist in the current market." If SIGs were half the price, I'd think about it, but I'd buy a nice AR before that anyday.
Guess I'll be putting a heavier bolt in the sub-2000 and calling it a day. If I hadn't inherited the sub-2000, I'd probably get a Ruger or a Beretta, but I have a feeling I would have the same issue with them as I do with the Kel-Tec, especially after reading the responses here.
Thanks, hive mind! Good discussions here....