Been reading folks using ballast box on back of their tractor for ballast. My BX1880 is fairly small so thinking of a 3 point back blade for ballast. Is anyone using a back blade for ballast? Only time I think I will need ballast is in the winter when plowing. The snow pusher I ordered is 300 lbs. The rear blade I have been looking at are around 170 lbs. for a 4 foot and a little over 200 lbs for a 5 foot.