The Evo 40 is an excellent wing. Used one for years for all sorts of backmount diving.
They do occasionally come up second hand. Make sure the stitching's OK and not rotted (which happened on a single tank version I bought -- and Halcyon were brilliant in selling me a cheap replacement outer shell).
They do occasionally come up second hand. Make sure the stitching's OK and not rotted (which happened on a single tank version I bought -- and Halcyon were brilliant in selling me a cheap replacement outer shell).