1. More IRS options at a reasonable price point. I have an Art Morrison IRS and I love it but the price is high.
2. More focus on ride quality and NVH. Some/most of these suspension systems are too harsh for touring imho. I noticed that Roadstershop introduced a line of chassis at SEMA that focuses on ride quality so maybe I’m not the only one. Lower spring rates with greater travel, more like my second gen CTS-V.
3. A complete industry wide ban of heim joints and cheap poly bushings.

. They suck imho....
As you can see I focus on the touring aspect of pro-touring so I may be in the minority.
Don