Hello,
There are quite a few F3A-biplanes around these days, as the F3A-final programs (F-09 etc) gets more demanding (and bipes arejust cool.. ).
(Oxai: Adventure, Euphoria, Miss Wind (Sebart), Amethyst, ZN Suxess, CA Scandalous, Harada Meister (http://www5f.biglobe.ne.jp/~aircraft/meister_2008.htm), Kanno Progress (http://www.mercury.sannet.ne.jp/kann...newmoderu.html), Kanno Bambino (http://www.mercury.sannet.ne.jp/kann...banbino90.html) , etc etc...)

In my mind, the biplanes has the "edge" only in the final rounds, where there are moreknife-edge manouvers (rolling loops etc..). I just have experience with the ZN Suxess, but I would guess some of the characteristics are similar on other bipes. I must admit I'm not "up there" among the finalists (way short actually..), so I'm just playing around with P-09. Tried out the Nordic-N-09 schedule with my Suxess last weekend with mixed luck.. Plenty of straight lines and gentle manouvers.

One "problem" is the waybiplanes track.. And of cource the wind issues! Compared to my Oxalys, the Suxess needs way more corrective rudder and aileron through looping manouvers. And it really drifts in strong winds! But the rolling is exeptional! Of course, knife edge-manouvers are plane laughs as well! Weight seems to be an issue with bipes, so be aware...
I have stil not flown the Suxess in an F3A-competition, but maybe this summer (just moved up to F3A last season).

As a little fun"fact", more 110-size F3A-bipes are now emerging... Take the Hirobo Adventure 110 or the Sebart Miss Wind 110.. Great fun! ("And it even fits under you bed....") </p>