Now I have something new to look for in my RDS 8000 manual.  As is I didnt have enough already. 
BTW, I just ran the second tank of 15% thru my Magnum 91 4s.  As soon as I can get a reliable tach I can confirm it is running as good as it sounds like it is.  Its the first radio I have a throttle kill sw on.  That was cool.