Since we are building a car with a few engineers in the house, (slows things down!), I will share our experience with the PST 1.03's for you Peter. In our application, (inline 6 with an aluminum alloy head, no installed fluids, or hood, we had to set the adjustment screws ALL THE WAY IN to stay about 3 mm to 4.1 mm, (1/8" to 3/16"), off the LCA bump stops. If we were going for the slammed, bagged look this might have been OK but to not have ANY adjustment left AT ALL for a car at full weight with fluids or settled bars resulted in the 1.03's to be completely unacceptable for our application.
We ended up calling Dick at Firm Feel for the correct 1.06 torsion bars with approximately 15 degrees of offset.
While I'm sure some folks feel OK living with a zero offset bar and a buried adjustment setting we do not.
PST: Fix the offset issue, do a little PPAP, and you should have a product that works.
I would LOVE to hear from successful 1.03 PST users myself and see a picture of their adjustment screws.
