I personally have a 3,500# 5x10 single axle trailer I purchased LONG before I considered owning this machine. I recently towed my
BX2230 with FEL and BB several hundred miles.
With the FEL curled over the front and the whole thing strapped down, I didn't feel concerned with capacity. But in reality, the whole thing didn't work too well.
My primary concern was with "sway". My presumption is the single axle wheels/sidewalls in combination with the generally high COG conspired to make the whole trailer "twitchy". I got used to it and was able to feel comfortable transporting to and from, but I have resolved that I'm not transporting my machine more than 10 miles without a dual axle trailer. More sidewall means more resistance to sway.
And the brake issue. I'm here to tell you that's a lot of weight out there without brakes. Emergencies are just that and you can't guarantee your truck and trailer will be perfectly aligned when you need to slam on the brakes. Then there's big trouble ahead.
I am now considering a 6x14 tandem with brakes. Probably should get a 6x16, but I'd still like to use it around the yard. Of course I'm probably fooling myself to think I could use any tandem trailer around the yard.
And the guy that didn't/doesn't tie down his load is a fool. No bones about it.