The 304CZ has a performance pretty close to the ASW 20 with somewhat
more benign handling, safer cockpit and being newly built comes with
modern instruments and a trailer.

As 2NO points out, you won't be quite as competitive at the higher wing
loadings, but I wouldn't let that put you off. It's a very capable
cross-country ship (check out 2NO's just-under-1000km flight last year)
and has a strong following in the USA. It's one of the few non-German
gliders that sells well and keeps its value.

Also gliders available in your area are worth many thousands more than
those across the country - trust me on this!

Mike