Hey Joe, my son and I are still racing but we have only hit one or two over the last couple years. Money, life changes, blah blah blah. Hopefully we will hit a couple this season. I know we will be at Southwick next month. They have new owners and returning the track to it's former glory. Especially with John Dowd running the bulldozer.
As Joe mentioned, bike setup is key. First, make sure you shocks are set up for your quad, weight and skill level. But I can tell a huge difference between having the chassis set up correctly. I follow this setup until the "toe" section.
http://walshrc.wpengine.com/?page_id=1154For setting toe, I use string to align the front wheels with the back wheels. Similar to how they do alignment on your car. I did a write up years ago about how to use jack stands and string. I will have to see if I can find it.
But there is a big difference when you quad is set up correctly and something is off. It all must work as one and one part can throw the whole thing out of balance.
As Joe mentioned...having controls setup correctly for you can make a difference especially with arm pump and feeling comfortable. Make sure you are in "attack" position when setting them up. In other words, do not set up your controls just sitting on quad but rather in the position you will be in on the track.