Ive always kinda wanted to have a saw or two tweaked up but I havent been able to justify it. I saw a good saw, and know that on any given day, they can be crushed, stolen, dropped out of a tree, etc.... I have some saws that haven never been harmed over the years, and in other cases, Ive bought saws that have ruined before 10 tanks of gas went through them. Dont take me the wrong way, my saws get treated well. But, a rookie mistake on someone's end on one of my jobs can lead to a pile of junk instantly. I guess it would be worth it to mod up one or two of the saws that are strictly forbidden from the guys that work with me. I have 2 or 3 saws that are off limits to everyone. That way when i call for my scalpels while Im up in a tree, I know they are coming up razor sharp and ready to rock.