Correct, but you just said "Va decreases with weight." You didn't specify an increase or decrease with weight, but when someone says "X decreases (or increases) with Y" it's assumed that Y is increasing. At least that's how I've always seen in presented. Could be a regional (geographical, not airline) thing. Like "Air temperature decreases 2C with every thousand feet" or "Air pressure decreases with altitude."

Although I guess after re-thinking the way you said it, I picture weight "with" Va, holding hands and strolling down a merry decline together. So yeah, Va would be decreasing with weight . So i guess you could say it like that too. I just never heard that kind of statement worded that way.

Just didn't want to confuse the guy. When I read what you wrote, I assumed you meant an increase in weight. Just a matter of semantics, I guess .