What if any advantage can I expect ?

if you are the D+ then you should be expecting to need 1.75-2 times more effort possible with cash and distance advantage and possible just distance advantage if cash is pretty much the same

In Division-1, improving to C from D+ will allow you to pull down higher "ranked" recruits.
At D, I think the highest ranked recruit that would even talked to me was #50 at his position.
Once I hit C- or so, that ranking improved to #25 at each position.
At B- I was getting calls returned from players ranked as high as #10 at their positions.

If I get a chance I'll try to look it up in my old notes...

Agreed on the multiplier being something like 1.7, at least assuming that you're the C and we're talking Rhode Island. If it's DII or DIII, the advantage is tiny.

really, you guys think a C vs D+ is a 1.7+ advantage?

I've always assumed the lower D1 grades at between 1.3 and 1.5 being on the high end for two letter grades.