[willy]

I have a single, have had them most of my life with several diffrent boats. Mine rides well, tows very well and seems to be more than enough weight wise.
My problem is for when things are not going well, I have had two tire blow outs over the years on single axles. One was my Robalo and the other was a friends AquaSport. If you are highway speeds like I was both times it can be very dangerous. The one on the Robalo was at 60mph and by time I was able to get the truck stopped safely it had ground the rim down to unusable and gave us a little scare.
On the other boat I was not driving, we were negotiating a curve in the county highway and the outside tire blew. The force blew the wheel and hub and sheared the axle. In about 5 seconds. Put the boat over on its side and dislodged from the supports.
Same thing with my camper, this time when I bought new I got dual axles and wheels.
If I buy another trailer it weill be dual axle. They are safer for you and everyone around you. And a blowout won't destroy your investment. Also the risks of a traumatic type tire deflation is much less, usually you just get a flat and change it. They are harder to manuever but who gives a sh!t