In a few weeks I'll take my check ride in an ASK21. All of my training
to date has been in a G103.

The examiner told me the ASK is a lot like the Grob just better.

any advice?

I'm a little concerned about taking my check ride in a glider I've
never seen, but not overly concerned. The performance looks pretty
similar and they're both fixed gear ships. So I'm thinkin' "no big
deal".

Doug