Once you make Legend there really is nothing left for us to go for. Still have all the Comps, but that's normal with all the Tiers. When you reach L88, the R11 Driver is available. Now L92 Ghost is there, but my putting is pretty good and I don't really need it.
A new Tier is a great idea, maybe an.. A and B Grade within the Legend Tier. Sure it can lead to more sandbagging, but that happens in real golf anyway and the Sandbaggers can quickly get found out.
I've come down from a Ave. of 72(I think it was) when first turned Legend to my present Ave. of 63.5, which has taken me about 8 months and getting better which is great and enjoying it very much in this Tier.
A new Tier to play for, will be great if there is one.
Cheers
Roger