Gents,
If we estimate that the glider is doing 100 Kt, and there is a max detect time of 20 secs, that give approx 500 yards warning. If anything is that close I want to know, and in that instance all I need is a forced blink on the screen, saying warning. Position in that proximity will be cleared by a mk 1 eyeball, if he is not left or right he is behind me and as I know glider pilots normally look up through the canope I'll assume he is above me and decend asafp 😄