My rotary is a 175/300 and weighs about 80-90 lbs. I can add 15lbs if needed. I see some machines are a 100lbs and can be added up to 50lbs more. Is it worth it? Is that much pressure really necessary?
I wouldn't add weight to a rotary it's just going to create more drag. I would add to an OP though. An OP machine is trying to lift up off the carpet, so the more weight keeps it down. Sort of like putting a spoiler on a race car. jmo