RE: Sig hog-bipe landing gear position...
I built a hog and have flown it a few times without incident. I made a larger landing gear plate and positioned the gear 1/2 inch forward of plan. Routed out the fuse doubler to accomodate a the larger plate; don't remember having to deal with curvature of the fuse.
On take-off I hold up elevator until the hog starts to roll a bit; then ease off and let the tail come up; once take-off speed is reached add a little up elevator. Be sure to ease off on the elevator once you've got a little speed or it will be a very short and disappointing flight.
Don't remember any problems on landing, though probably added up elevator as the hog slowed to a stop.