Thanks, Bob. The reason I posted here is because Heartland would not return my emails, and when I called, I got the run-around a bit. Seems like they can't answer a generic engineering question about their design which is common to all 2750RL's without the VIN# of a specific trailer. No big deal, but just a bit frustrating.
They did-finally-return my emails. Maybe they are just busy, huh.
FYI, I have towed trailers of all different sizes for maybe 20,000 miles or so, so I guess I'm not really a rookie. I always understood the need for proper weight distribution, but never really thought much about the ratio since seeing the specs on the 2750RL. I was/am just curious about what the effect of a wider spread would be (other than sway) on weight distribution. Looks like the answer is---that particular design is what it is, and I will adjust my load accordingly to get to 12% tongue weight, or whatever is most comfortable on the road.
Thanks for your patience and advice, Bob.