I have a kubota svl90-2 that I'm running a mulcher head a baumalight brushfire ms760 that weighs 3,500lbs. I do fine on frozen ground, but on soft ground the front of the tracks sink in and starts to tip the machine. Most of my property is swamp so this is a problem. I cant find any counter weights for this machine so it looks like I'll have to design some. Anyone out there make, design, or have any ideas on this matter? Thank, Gary