On the one hand, you're taking more money from the big, bad, evil casino. Cool! On the other hand, the dealer has two options here...
#1: He can continue to deal quickly, hopefully keeping the casino's earnings higher by keeping the game moving. THEN, you end up winning more, and the casino gets mad at the dealer for not waiting for a non-ambiguous hand signal.
#2: He can wait for a non-ambiguous hand signal, slowing down the game and lowering the casino's earnings. THEN, the casino gets mad at the dealer for not keeping the game moving more quickly.
Seems to me you might be putting the dealer in a somewhat awkward and rather jeopardized position. :-\