Thanks Dave!
I have a Schroth six point belts that goes through the bottom of the seat to the frame. I have to replace the belts next year, and I think I will go with the Schroth 6 point that goes under your cheeks and attaches to the seat.
To get the seat in the car, I have to remove the leg extensions. I was not able to get the shoulder extensions under the roll bar otherwise.
For Joel, when I put the Butler in, I felt I was sitting at about the same height and I was 6 feet tall. I am a little older now
and 5-11, but I come in well under top the roll hoop and no cramping of my feet in the foot box. I have no trouble with the pedals either. I could still move the pedal bar back two full notches.
DaveP