New to the forum. Have had this dilemma for almost a year now. I have a 400m that I offset ground the crank to accept a 2.2 BBC rod. I'm running childs & Albert almunimum 150 series rods. Anyway the problem is one rod isn't the same. And almost 40 grams lighter on the big end. So my question is, does anyone have 150 series rods? They literally don't exist anymore. Maybe they could part with one? Also is there anything wrong with just welding on a lil weight on the balance pad of the light rod. To even up the weights. Already way too invested into it to just scrap the crank and rods. So I really wanna get this together. Thanks for any input. I'm totally stumped. I have a extra 100 series rod and I'm going to weld on it this weekend and see how much stress it will still hold. Tig welding of course.