RE: Which one to assemble next?
the Zen 30 is an awesome plane and with the TT36 is an absolute screamer!!!
quality is tight and the flying characteristics are awesome. serious... one of the best planes out there in that size for that class. and... it's very pretty. prettier than any small pattern plane.
but i voted for the Cub. it was a toss up between the Cub and TM. but it really depends on what is already in the hanger!