I used to live up in Aptos, CA. Now I live in Albuquerque, NM. I love New Mexico!
My B26-2 is the one I am having fits with. I re-barreled it with a match grade barrel from MM. Made my own custom piston to go with a Vortek spring. At this altitude (5000') the shot cycle is a bit harsh but controlled at 11.2 ftlbs.
I may still be having break-in issues, so need to clean the barrel again, check the crown for burrs, etc. etc. Now and then it will put 4 pellets thru the same hole at 25 yds, but then all hell breaks lose... Drives me nearly nuts