I have worked very little with vine maple,, some things are universal,, as stated,, keep the taper even,,it may not look" right" but if the taper is even and all parts are working,,,it will make a nice bow,, I love the reflex,,it should have nice cast,, take is slow,, I am an old guy,, so I would just tiller as is,,as little heating as bending as possible,, but thats just me,, I am sure it will turn out nice,, B