I like it. We need to be > 59% to want action here and you give plenty of hands around that threshold the chance to make an incorrect fold with this line whilst costing yourself basically nothing against bluffs 'cas he shouldn't really bluff here (ie he has no bet/folds and we'd like to fold out the bottom of his bet/call range if possible).

I'm not sure you want bad J*** to fold(it has <35% vs your hand so your happy w/ that hand class pot/call) and he shouldn't have too many shitty AA** preflop.

Think x/jam is best here.  You don't have an equity advantage vs his range on this flop, nor is it one we could expect him to brick frequently so leading seems poor.  Additionally we're actually doing really well against some portions of his range that pot/call @ spr 2.5 that might fold if we're leading pot.

if villain is always going to cbet the flop in this spot then x/jam.  If villain is likely to x/back a lot of weak AAxx hands and wait for a safe turn then just take the lead yourself and b/jam.

my guess is at this level AAxx is going to bet the flop most of the time when x'd to, and I'm happy going for the x/r since SB may call a bet before my x/r and add some dead money to the pot.