Been saying basically do this for a while. Cleanest way to sort out TL and get some integrity back is probably a new tier. The top of the TL rankings is a farce as is being able to get there by banging the crap out of Beth F9 in a CC or perhaps a low wind Legend event if really feeling like showing off.
Seen Champ mentioned above so will go with that for this:
Champ is achieved when your best 100 qualifying RRs shot within TL = an average of **to be advised but suggest 57**.
A qualifying RR may come from any of the Courses (ex the usual Bo Courses), but only 7 RRs per F9 and B9 from any one course will contribute.
I will leave the exact language to the professionals but think the above is good enough to get teh idea over for now.
No clue if the WGT systems can handle that, but will be an epic, biblical proportion, fail if just do it on the current average basis.
That sorts out the basic issues with TL as it stands.
I suggest you leave earnings out as some do not gamble.
I would do this first to sort out current issues, and then if a Tour Champ becomes needed there is room, and can be dealt with later. Maybe earnings away from RGs (as some do not gamble) could be included there, but I suggest doing it on tourney placings. I do not think a hall of fame type tier is a good thing as that should be done in a hall of fame if people want it.
100 RRs should be plenty of a test as you are only sorting out a known issue really. 500 RRs will be an unnecessary wind up IMO.
The pro shop should also be opened to the new tier regardless of level, and say 1000 credit welcome.
EDIT: Once saturated your average only drops from playing those so many varied courses per say 100. E.G. saturate, and play BPB F9 7 times and it drops, but the 8th time won't until all the others are played at least 7 times. Ideally not all others but a good number out of. It's fun and making players play somewhere they simply do not like I don't advocate.
Lastly TL saturation should only need 400 RRs going forward. That's a huge test still for those that play all courses and generally good all round.