Modest intervention - big consequence

This was a less than stellar performance from the local imp-league in January.

Kxxx
AK9x
Txx
Tx

Imps/all vul. The bidding started with two passes and a 1D-opening to me and I felt like overcalling 1H. This isn't my normal style, but sometimes one's got to try new things to widen the horizon. The complete auction:

(pass) - pass - (1D) - 1H;
(2C) - 3H - (4H) - pass;
(4S) - pass - (6C) all pass

Full deal:

_______A984
_______T6532
_______Q2
_______J3
T____________QJ32
QJ84___________
853__________AKJ96
AQ975________K864
_______K765
_______AK97
_______T74
_______T2

Easy make for +1370 and -15 imps. The 1H-overcall was the difference between a partscore and a making slam! The board were played across the room at 12 tables resulting in 1 slam, 3 games and 8 partscores. Our team-mates had the following auction:

pass - 1D;
1H - 1S;
1NT - pass

Not really close ;-)

As for my overcall, I probably deserved some punishment...