Modern Flow's Vintage model is a great Gi to pick up for Summer training.$80
I'm 5'10 and 195 lbs. Should I go a2 because I will probably do some weight or go A3 because it might shrink a bit?
Tough call, but whenever you're on the edge it's always best to go for the bigger size, since you can shrink it down.
is that a maroon color or more red?
The official diagnosis is "port" - other acceptable names would be burgundy or maroon.
I am 5'9" 200 lbs and David from Modern Flow suggested A2 for me
I'm sure David knows his Gis best. If your height is one size and your weight is another, I'd trust his judgment on which way to go.