100/200 150bb deep - play along

[KRANTZ]

FullTiltPoker Game #2726546393: Table Data (6 max) - $100/$200 - No Limit Hold'em - 3:27:39 ET - 2007/06/21
Seat 1: pr1nnyraid ($34,878)
Seat 2: sbrugby ($36,188)
Seat 3: MUCKEMSAYUHH ($37,305.50)
Seat 4: TeeDitty ($35,508)
Seat 5: LucLongley ($39,279)
Seat 6: tkdcrew ($42,485)
pr1nnyraid posts the small blind of $100
sbrugby posts the big blind of $200
The button is in seat #6
*** HOLE CARDS ***
Dealt to pr1nnyraid [3h Ah]
MUCKEMSAYUHH folds
TeeDitty has 15 seconds left to act
TeeDitty raises to $700
LucLongley folds
tkdcrew folds
pr1nnyraid calls $600
sbrugby calls $500
*** FLOP *** [As 8h 4c]
pr1nnyraid???

TeeDitty is apparently Tuan Le, who is running at 40/25 and a complete maniac. I can't repop him preflop because he shoves 90% of his range over a 3-bet and I really dislike mucking this hand against a player like him.

Lead or check the flop? I'll post next action when I wake up.