We've had a 2019 WakePro 230 since new and recently picked up a used 2015 GTR 215. The WakePro accelerates linear throughout the RPM range. The GTR is much slower accelerating from a stop, then really takes off after about 4000 RPM. The GTR seems to run well. Idles smooth. Don't think I'm getting any cavitation. I realize these machines have different performance charactaistics, but should the GTR 215 have a more linear acceleration throughout the RPM range like the WakePro? Is is normal for the GTR to wait until 4000 RPM to come alive?