yes, I use the clipper over comb method to blend in any visible lines.....but that method is hard to explain in an email.
try using your guards in succession, not skipping any. (for example #4 at the bottom, going to a #5 and up to a #6
at the point of transition, use the blending shears to blend in the "line" of transition.
I use this method even with very short fades.....for example, no guard, transitioning to a #1 and then using a #2 on top.
DebbieS.