AA flops quads

[ticks]

I usually play cash games, and some SNGs online.
But once a week I play at a local club.
Between 25-40 people, and payouts to the top three.
Buyin 100+20 NKR (=20$).
8 people at the table when this hand came up, and still 25-30 people left in total.
Blinds 75/150.
My stack is about 3700
Hero picks up AA UTG.
I raise 300.
Ive been playing very TAG, my raises get too much respect, so I was worried it would be folded around the table if I raised more.
Two callers, one in MP(about 3000) and one in BB(about 7000).
MP is difficult to pin down but not too bad I guess, BB is laggy.
Pot: 975.
Flop: AAx.
And I almost fall out of my chair (metaphorically).
I bet 200 - a bet I hope will be seen as weak stealing attempt.
Do you sometimes do this with your monsters?
Or should I just check and hope the lag goes crazy?

In my opinion, a check-call here conveys more strength from a tight player than a weak bet.