I'm just an up and coming coach, I'd give myself a good to pretty decent, rating but not Veteran or Hall of Famer status just yet, but even from my linited experience, (I only have one team and 17 seasons with them worth of experience in D111 & D11) you're missing 2 KEY Elements that I've figured out without ever doing FSS. All I've ever done is the asst. coach scouting trip because I've always been in a conference that's OK, but not great (as in 2 NT teams/2nd round and 2 PIT teams/2nd round per season average and with that you don't get alot of recruiting money).
1. I've never done more than 2 scouting trips per player (money issue again) and the way I've always have taken it is, if the asst coach doesn't mention it, he sucks in that catergory, and with 8 scouting trips you should have known better. Hell, even with the money I would have had some kind of idea after 4 trips, but 8.
2. After 8 trips and to not get info in CORE areas, you should have known better.
3. Ranked Players are where they start, not where they finish. It ranks their abilities now. That's why you need the FSS.
4. To answer that other guy, I pulled the 150th something PG a few seasons ago with only a B or B+ Prestige. It was day 3 of the recruiting cycle, all the guys I was going after had already signed with a better D11 or D1 team, or were considering one or two other teams, so for the hell of it I went back into the D1 list found a guy everyone had forgotten about, passed over, or had fallen through the cracks, went after him and got him. Than to put the cherry on the sundea, I Redshirted him and he took it with no loss in WE.
5. The one thing I do agree with though is your point on the 8 trips. After that many trips you should have known everything including which way his "junk" hanged. That is the one thing I do think Seble and the WIS guru's should look into.