RE: single shot
I don't know who those people are that think a single is so terrible.
Always seem to me as people who don't know how to hunt.
Most of what "we" use are single shots. Dad (one of the big turkey hunters of the family) has gotten a bird just about everyyear as long as I remember and that is all he has every used. Like you said, you just need one shot, and if you miss, you ain't getting another.
I think the single is the "single" best gun for turkey.