Stephen Tu, on 2019-February-17, 00:20, said:
At some point you have to decide whether you've already bid your hand already. You've already doubled and raised clubs. What extras do you have beyond the minimum for this? You have a dubious HK and DQ. 4 clubs is very unlikely to make as partner has less than opening (bad 10 at most on bidding) and you have essentially a sub-min opening hand. So you are supposed to give up and try to nip 3H 1 trick. Or hope 4H makes since apparently it did.
Additionally, at imps scoring, you should not be too concerned with part scores. I wouldn't expect 4c to make, so it looks like a sacrifice to a making 3h which is a difference of 1 or 2 imps. If you push them to a making 4h contract, however, you lose 10. Basically, don't get too crazy with part scores, if you've gotten them to the 3 level, that is usually a success.