On Thu, 28 Aug 2008 15:44:38 -0700 (PDT),
wrote:

There are a few 28-18's but not many.

Having flown against both the 15m and 18m versions, my personal
conclusion is that the 18m version has the edge. Great climbing and
great high-speed perfo.
When flown in 15m, it seems a bit less effective.

All IMVHO

Aldo Cernezzi