PP (22) HU with JJ

300/600 Tourney Texas Hold'em Game Table (NL) (Tournament 17993075) - Sun Dec 04 20:36:44 EST 2005
Table Table 67596 (Real Money) -- Seat 1 is the button
Total number of players : 2
Seat 1: HERO (2980)
Seat 7: brdiamond (5020)
HERO posts small blind (150)
brdiamond posts big blind (300)
** Dealing down cards **
Dealt to HERO [ Jh, Jc ]
HERO calls (150)
brdiamond checks.
** Dealing Flop ** : [ 4s, 7d, Ks ]
brdiamond checks.
HERO bets (425)
brdiamond raises (1200) to 1200
HERO....

I have been tryin to work on my heads up game of late because i have been getting way to many seconds lately. after reviewing some HH i think i was playing to aggressive with every hand. so i have been trying to slowplay a little more often espcially against aggressive people. my read on villian was that he was aggressive so i completed expecting him to raise like he had been doin very often up to this point.

on the flop there is an over card but i dont expect him to have a king because i would exepect him to raise preflop with most kings. the only posibility that i could thing was maybe he was slow playing AK or maybe KQ but he had been so aggressive up to this point i figured it wasnt to likely but then he reraises me. i could see him doing this with a huge range of hands that i am way ahead of tho.

advice on all parts of the hand are appreciated. thanks in advance