Tricones, too, are also incredibly versatile. Not just for sliding blues. As the other type of resonators BTW (biscuit and spider)
And some modern models have a cutaway.
I do play a tricone (and a biscuit cone), also :
http://www.youtube.com/user/batzic#p/u/17/oQHGHMJaWfA
http://www.youtube.com/user/batzic#p/u/16/qPkoS3iKLVY
http://www.youtube.com/user/batzic#p/u/10/fREL4WgEqbo
What I love in them, as in macaferri guitars, is the very fast response of the instrument. A X-braced flat top don't do that.
Those are fine guitars to fingerpick. Very "precise" guitars (if that means anything)
BTW, thanks for the mention of Aleman. Not well known these days, but what a player. And what a career...