Although the cap 232 and the extra has the same wing they don't fly the same .The larger rudder on the cap has allot of authority ,where as the extra is in need of more rudder .The snapping characteristics are about the same ,slow either one down to much and its returned to kit form .The Something Extra is a great little plane ,like it has already been said and I agree a flier of your skill level this would be a great choice .Heres my choices of planes
1.Sig something extra
2.Great planes super sportster
3.Sig 4 star 40-60
4.Goldberg Tiger 60 -Tiger 2 40

Theres several others ,but whatever you do don't get ahead of yourself and build a plane you are not really ready to fly yet.
I think that we can all agree on this we all hate to see a plane go in no matter what the reason ,but it makes it worse on the pilot if its a dumb thumbs movement .

Good luck on your decision and build.