Couple of options: Firstly, continue to ride...if it works, don't change it! Simple increase tension on the rear pre-load bolt until you like it best.
For more detailed info, please look over the Advanced Tuning Chart. Remember this, the first thing you build when you build a house is a foundation. A crappy foundation will yield a crappy house. BodyFloat allows you to build the foundation between you and your bike, then let's you build on top of it whatever performance or comfort metric you desire. Yes...it can be complicated, but tuning a motor to a chassis is not a simple feat. The more discerning the rider and bike, the more specific you can tune it and the more time it can take. For simple tuning, just sit and ride. I can tune people in well under 5 min...but have also spent hours dialing in their bodies to their bikes.
If you want to truly enhance the performance and comfort options on BodyFloat, go through the process of Neutralizing your body on your bike. This means riding at your regular output with proper saddle height and tightening the pre-load bolt until you feel a stable, firm saddle under you, experiencing very minimal bounce or movement of the BodyFloat. From here, confirm you saddle height. If you take your hands off the bars or try to bounce...it will...and it should. But you don't ride like that so don't tune like that. Tune BodyFloat to how YOU ride. Once your neutral is confirmed, you can then remove pre-load and thus reducing spring tension and allow for your body to become the amazing damper that it is. The closer you are to neutral, the firmer, more responsive the feel...this is the Race feel. As your remove pre-load, BodyFloat allows the bodies joints and fluids to help damp the high frequency noise.
There are many options for feel, depending on what you desire. I ride my ST1 generally on a "B" spring rate (170lbs: B = Black over Purple) with minimal pre-load. This allows the bike to move around under me freely yet I can maintain constant contact, and I find that best for riding a 60 lbs bike. When I put BodyFloat on my race bike, I increase pre-load to about a 3.5 and get a super firm feel but can drive it much harder. So many options...so little time.