Dale, DBSAR:
I based my comments on anecdotal reports of what cells worked with the JM35 (1x26650/1x18650 version), such as M4D M4X’s review.
Regarding 26650’s packing more punch, I recall a discussion on this matter 4 or 5 months ago. I think it started off with a poll, asking to guess which would perform better under a certain circumstance. I tried doing a couple of searches for the discussion, without luck. I’ll keep on searching…