wrote:
.... If I wanted to
pursue my glider add on rating would any of my old glider time count
towards the requirements? I flew a Grob 103 about 10 years ago, that
was the last time I've flown in a sailplane.

Assuming USA, there is no time limit on time. For the best information,
go to the source http://tinyurl.com/32ema3

Tony V. CFI-G