short term adjustment vs huge position 3b

There's a reg-ish looking guy who I have seen pot 3b and squeeze suited gap connectors IP against EP raises. I only have about 200 hands on him, but from what I have seen he looks solid post flop - can hand read etc.

For now I haven't had really interesting hands with him at the table. I have opted not to open or iso the bottom of my range with him IP, but that's it.
I don't know how he plays against 4-bets. Obviously 4b jamming small pp's, AQo+ for <= 100bb should be immediately profitable until he adjusts. Prolly 4b 3.5x with JJ+, AK and see what he does for now.
I currently don't really have a calling range in those spots against him.

thoughts?