Av gas or Race gas

[Racegun]

See... with AV gas they put white dye in it so planes will leave a white trail in the air and we can see them.
Problem with this for sledders is that the guy following the AV gas user must constantly stop and clean his goggles from the white trail he leaves behind.

 

[johno]

Amount of Boost running 100LL with no head shim

Just curious what the Apex boost pilots are running and at what elevations.
I ran 110 strait but wondering what I could turn it down to and run the 110.
Or are most of you running the 110 with headshims and as an substitute for 50/50.
Thanks,
If this attempt at information is distracting from the thread feel free to Pm.