I think it's a good spot to 3barrel, I like it. I would like it even more vs a reg cause fish would call wide, maybe any 8x or overpairs like 99-JJ that you want them to fold.

I think it looks alright but since you didn't post any villain reads/stats, and since I would never make this play readless(if we do this readless I don't like it since random villain can call 8x+) I find hard to judge how good of a play this is.

I think the standard TAG reg will fold 98/87/99/TT most of the time on this runout though, unless you have a crazy rep. =)

I dont think you have much fold equity OTR. Only some Ax of diamonds will fold to a bet (maybe 55-77 as well) I dont expect villain to fold 8x plus here. So if you want to maximally exploit them, check folding this hand should be better. If you want to be balanced, its probably a bluff. You have A5s (4), TT+ (30) - maybe TT is too thin? idk tbh - and 88 (3). So 37 value combos, betting pot you need 18.5 bluffs. Turned flushdraws will be something around 15 combos depending on your preflop range and if you want to barrel hands like AQdd, AJdd, which probably play well as a check/call flop. So yeah you probably need all your turned flushdraws since I dont see you bluffing with many other hands OTT. Maybe 76s?