Bill Daniels wrote:
Robert Mudd is dead on.

I would add that there is considerable safety and operational value in
standardization. On any airfield today, Tost is the dominant
ringset/release system. If a second system is used, it adds ring switching
to the rope handling chore. There is always a temptation to use a Tost
ringset on a Schweizer which WILL occasionally jam the release.
Standardizing on Tost is expensive but safer and more convenient.

Well, good luck getting Schweizer gliders banned from airfields unless
they have a Tost conversion. But I agree that not having to hassle with
switching rings on the end of the tow rope would be best. Btw, The
three Schreder gliders that I have flown accepted either the Tost ring
or the Schweizer ring without problems.

Regards,

-Doug