I just got in a F7 today. Went to a field after work and gave it a toss against some other US discs I'm trying out for that spot and I have to say, I'm disappointed. It flew like poop and was completely overshadowed by the other discs I had with me. I will admit I was tried and now throwing well but I found it to be the shortest by a good ways and was unreliable with its turn. Now, I noticed that on the bottom of the disc was a small amount of flashing and took that off before I went out but there is a massive amount of flashing along the nose of the disc. Would that affect the flight too? I'm gonna give it a few more chances but just wanted to see what other people's thoughts in this disc were against a river and underworld.