5CD MTT - Are you always capping it here?

[greggg230]

PokerStars Game #11195987802: Tournament #56065401, $5.00+$0.50 5 Card Draw Limit - Level VI (200/400) - 2007/07/29 - 08:54:58 (ET)
Table '56065401 3' 6-max Seat #2 is the button
Seat 1: Kellie*T (3285 in chips)
Seat 2: greggg230 (3440 in chips)
Seat 3: svtnmtn (1940 in chips)
Seat 4: König C.K. (2570 in chips)
Seat 5: gefreiter a (4435 in chips)
Seat 6: washurkiger (1105 in chips)
svtnmtn: posts small blind 100
König C.K.: posts big blind 200
*** DEALING HANDS ***
Dealt to greggg230 [J[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/heart.gif[/img]]
gefreiter a: raises 200 to 400
washurkiger: folds
Kellie*T: folds
greggg230: calls 400
svtnmtn: folds
König C.K.: calls 200
König C.K.: discards 1 card
gefreiter a: discards 1 card
greggg230: discards 1 card [K[img]/images/graemlins/club.gif[/img]]
Dealt to greggg230 [J[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/heart.gif[/img]] [8[img]/images/graemlins/spade.gif[/img]]
König C.K.: checks
gefreiter a: bets 400
greggg230: raises 400 to 800
König C.K.: folds
gefreiter a: raises 400 to 1200
greggg230: raises 400 to 1600
Betting is capped

Difficult to put him on a hand other than another full house. Do I just call the 3-bet?

Also, in another thread I posted recently where I started with kings up, the general advice was to 3-bet. I take it that it's not right to 3-bet ANY two pair. 3322x, for example. So, is JJ up good enough?