RCKYURWLD--
Correct, though they do "represent" the cutting edge of Track industries.... I just haven't had success with the 9 series balls, though I have only used the 920t.
I have had the 920t, 716c, 503t, and 508a. Got rid of the 920 when I dropped to 15lb instead of 16. Wasn't a bad ball, but wasn't as strong as I thought it would be in the beginning (it did find a spot in my bag though). I still use the other 3 balls, but seem to match up best with the 503t. The 508a is okay for THS, but the mids need to be almost gone for it to roll well (that and I have it at 4k, with xxx polish). Wanted something longer and smooth, this ball fits the bill.
If I can get an 811c/t on disco, I will; liked the look and continuation of that ball. Same with the 300 series (A and C).