The dilemma is that I don't think the recent weight gain is from fat, but from muscle. When making this promise to myself, I never imagined that I would gain weight in this manner. Since becoming a flat bed trucker, my body has grown thick and muscular. I'm barrel chested with defined pectorals. My thighs are firm and strong. My biceps bulge the hem of a short sleeve when flexed and my forearms are sinewy and well defined. The muscles in my shoulders rise above the bone. There's even this really interesting meaty thingy right at the base of my neck where it meets the shoulder. After being a 120 pound weakling most of my life, I could probably kick your ass now.
That's not to say I'm lean, though. I do have a considerable middle-aged man's paunch. But I've had that for some time and, while I think I could probably stand to lose 10 pounds from there, I don't think that's where I've gained the 10 pounds. With concern to my paunch, I've always accepted it as an inevitable consequence of aging, especially since it's the only sign of fat anywhere on me. Most BMI charts claim that for my height, 170-205 is the "overweight" range for me. Going over 205 would be obesity territory. However, the BMI chart admits that the index doesn't allow for various factors, including muscularity. One could make an argument that I'm carrying a little extra weight, but I don't think anyone would construe my body as being overweight.
In light of all this, I'm going to relax my cutoff weight vow as long as I have these muscles and move it up to 200 pounds. I figure that realistically, the most I can continue to put on in muscle is another 20 pounds, topping me out around 190. Personally, I think I'm going to naturally top-out at about 180 with the muscle, but I'll allow myself the 10 pounds of leeway. I'm basically giving myself 30lbs. of muscle on the BMI, but I can't imagine any scenario where 200 pounds would be an appropriate amount of weight on a 5'10" man.