Boobie.. What do you see for top end RPM with the 24? I had an issue years ago with reeds that made the motor not want to get out of the hole, but it would run top end no issues. My 2016 V20 has a 3-5 second hole-shot loaded.
Boobie..a motor with a bad reed bank will turn rpm but won't have any low end. If the motor is checked out it needs to be leak tested. If it's not the motor then call Legend! Ask for Kody or Pete. A 15-20 second holeshot is just not right..