SchwapSchwap

In a HU match vs an extremely aggressive villain (especially pre-flop), opening ~100%, 3-betting ~80%, 4-betting ~35% what should our general strategy be to combat this player-type. Post-flop their game is generally solid with a heavy c-betting strat (75% pot sizing), not nearly as aggressive as their pre-flop game.
Note: play is extremely deep 400+ BB eff. at all times

The particular hand that lead to this post is live 5 card plo. But for discussion sake let’s just lump 4 and 5 card together. I know it’s truely not that simple to differentiate, but I don’t want the point if this post to be those differences. OTTH:

1/2 5 card with 5 dollar straddle. Most players deep. Hero about 1700 to start. Sb with As Ah Ts Tc 3d. It’s been raised to 20 w several calls. We pot to 110. 4 calls.

F (5) (550) 4s 6s 7h

Spr about 3. Should we just be leading here and getting it in, pushing some fold equity and knowing we are never crushed and pushing out some hands that will pick up backdoor equity on some turns (that part is actually much more relevant in 5 card).

Or is a better line checking to see what happens, knowing that when we lead and get called or raised, it’s almost against the nuts? Checking may also allow for a bet/call spot before action is back to us and improve our odds?

Or other thoughts on these kind of spots in general?

Cheers.