FM,
JFJ's isn't a normal hang out since it's about a 70 mile run each way. My other alternative is to stay over at a friends and launch from Buttonwood Beach , about 30 miles north of JFJ's.
I'm figuring mid to upper 80's but will be very happy at plain ole 80.
SR-1s are the same way with the gas. Another guy where I launch has one and ran out of gas one engine at a time:o