Hey folks, happy thanksgiving! I'm stilling mulling around what rear blade to buy and as I was looking I noticed everything I was looking at has a 1/4" moldboard but each varies in weight from the mid 350-500+ lbs. My question is, If they all have 1/4" moldboards why does weight matter (why would I want to go with the heavier if 1st/2nd gear nice and slow would work with lighter blade), if the moldboard bends on a 350lb blade it's going to bend on a 500lb blade? I guess I'm trying to figure out if I should get the WOODS 7' 350lbs blade or go up to the $1,500 WOODS 7' 500lbs blade while JUSTIFYING which one I decide on. Thanks guys, Anthony