Originally Posted by CoachDavidShen
For me, the start of the oomph is right after the moment my recovering hand drops in the water and i kick the 2BK. then there is the long ooooooomph after, as Rincewind suggests until the hand stops pushing water back and starts moving forward to recover.
Excellent description Coach David! I would only change the "oooommmmphhh" to "zzzzzzzzziiiiiiig" like being shot out of a cannon on each stroke :-)