[NL] "Grendel" test riders needed

After 2 weeks of work, I have nearly completed the track layout for my first summer coaster project, Grendel. I thought the first part of the ride was good enough to do more with it, so I added 2 inversions to the end of the ride, bringing the grand total up to 11. (another record breaker). I need a few people that can write good reviews to test ride this coaster and send me some feedback on the intensity, smoothness, and help check for collisions. If you feel that you are a valued test rider, leave your email address and I will send the track to you. So far, I have no supports on it, and the track is about 80% smoothed out to the final quality. Please tell me what I need to do to make this a fun and thrilling coaster. Your opinion will be greatly appreciated.