I have used the GRP's (26mm front, 30mm rear) and they fit perfectly fine, the rear 30mm are a 2mm offset.
I mainly use ATS foams (26mm,30mm) and the 30mm rears wear a slight notch in the ballcup on the bottom of the shock on the first run, but nothing to worry about.
On our track the asphalt specific foams (ie. nitro foams) work well on electric TC, running the rears on the front however does not work, the car is undrivable, sooooo much front grip it isn't funny and the fronts wear out too fast using rear rubber.
I generally use 37's for practice if I have them and save my 35's for race day.
Interestingly when going from 37's all round to 35's all round there is a touch more steering with the 35's, it seems the overall change in shore effects the balance of the car some
Originally Posted by John Stranahan
Stratus 3.0 Multipurpose
During some testing at the start of the year I did for a big race meet, initially on my FTTC4 and then a Cyclone, I found that I didn't like the AP Stratus.
I was using the AP and I had the carpet version so I just put that on to try and wow what a difference, the overall balance
was the same but the front was stuck and very predictable, I found with the AP the nose of the car tended to "wobble" around mid corner (well most of the corner) and it didn't give me any confidence, with the carpet version on I could drive much harder, and with more confidence, through the corners.
This also carried over to the DNA body, it was very similar to the carpet Stratus, maybe a touch more steering, but only very slight. I eventually settled on a Mazda6 for the car just because I needed the extra steering.
I will try and find a pic of my home track.