For me, it's not about taking heat out. Tho I have wished the bar was A LOT cooler many times when it was hot out and I nearly burned myself packin my saw on my shoulder. When you can feel the heat thru a felt lines saw pad on your spenders. You know the bar is Hot. Unless it was frosty or freezing rain or snowing. I did not wear gloves when cutting timber. They made my hands too hot. I always carried a pair on my for packin my saw or rolling a chain on. ( At least I did after slicing the tips of 3 fingers nearly to the bone one time rolling my chain of when the pistol grip slipped off the tree I was standing on. ) I always pack a saw on my right shoulder. So I would put the right glove on. The high temp paint is to keep the paint from flaking off the bar. I'm sure bars get up to 300° F at times.
Meat, I misread your post Can take quite a bit out. Probably 2.5 to 3 lbs from a 36" bar. Not as much as an Oregon Lite bar, but close. The bar I swiss cheesed did not have the floppyness that the Oregon Lite bar does. Which I think was because I ran a stagger pattern that kept alot of the ridgity in the bar. It was a true joy to limb with.
Not yet. When I do it I'll take some pics and post them. It was 32 years ago that I did that. I wish I would have carried my idea thru to filling the holes with JB. I could have patented it. I was well and truly non computerized back then. Pictures were a relatively rare thing to take . Even if I did take any. They were no doubt destroyed in the wet. Hard to keep stuff when your a tramp like I was. I never thought I would live long enough to look back.
What I plan to do is 1" diameter holes along the center of the bar spaced 4" on center. And a row of 3/4" holes centered above and below centerline . Offset from each other by 1 " and staggered between the 1" centerline holes. I'll champfer the holes pretty good so the JB Weld will have extra to hang on to. I need to get an 18 volt , Brushless , Makita , 5" random orbital palm held sander, first. I need one quite badly and this is just another job for it. And a jug of acetone