Hi,
Going broke is fine when in doubt, he doesn't even have 100bb. It's not really a thrilling situation for us since he looks somewhat tight over the first 100 hands, but we can't discount him having a worse Ax either and just be overplaying it, so we'd both like to stack worse Ax hands before it gets ugly and get it in against draws before they hit/miss if he can have that. We have the backdoor nutflush draw for some extra equity and we're only in really bad shape if he shows us a set. Sets aren't easy to get.
Hope it helps.