I seem to recall that Higley used the example of the Sig Smith Miniplane to illustrate [the building] of the particular type of cabane that Sig used on this and some other models. He seemed to approve of its design. However, he did say that some of the Miniplanes he had seen fly, had an initial climbing tendency. Instead of trimming this out on his own model with an element of down elevator he gave the upper wing some very slight negative incidence [as opposed to the zero incidence the plans apparently require].

Having said all that let me underline that I have not built this model, myself. Just giving a recollection in case it's of use to you. Can't think of anything really radical that he suggested for the Miniplane, but others may know better.

Good luck.
Runway