I guess the ultimate test would be to take an SRF to a track and see how many miles to empty. 30 maybe? I'd be very surprised if an SRF will do more than 50 miles per charge when used on the road to its full potential.
Last Monday, I went to a track day and the SR/F was there. I didn't keep track of how many times it was out there on the track, but the owner said maybe 4 sessions which were 30 minutes long. I know of at least 2 people that rode it, maybe more. Not sure if they did the whole sessions or not. I just can't imagine the SR/F could do 4 full 30 minute sessions on a charge though.
When I went to demo the bike earlier this week, I showed up and it had 44% charge. The dealer said they had not charged it since the track day. So, if that is accurate then however many times it went around the track that day, it burned 56% off.
I did hear them say that one of the racer instructors was on it last (and he was blowing past everyone apparently) and it dropped in power on him during the ride. He brought it back in at that point. That's when people lost interest in riding it at the track day, because they knew it was no longer giving all the goods so no one wanted to ride it again. I guess under 50%, it doesn't give you full power anymore. I find that to be similar to my FX as well.
I could imagine the SR/F being a fun bike for a track day IF there was L2 charging available there, which there is not at this track, at this time. If it were, you could start at 100%, go run it like a mad man, come in and let it charge under it was your turn again, etc. Until they get the whole 12Kw L2 charging thing more readily available, that might be tough to come by though.