On Monday, May 15, 2017 at 2:42:14 PM UTC-4, Darryl Ramm wrote:

I'm also not clear why you are specifically worried about 10,000'.

Because 'Class E 10,000-18,000' is the only airspace, where I plan to fly, where I would need the 'glider exemption' to legally use TABS.

https://generalaviationnews.com/wp-c.../AC_90-114.jpg

I'm narrowing my focus to the issues/regs that affect me. I'm not planning on flying in airspace where a glider would be be required to have something more than TABS.