I think it will be a problem (slow up a hill or into wind) but should handle it safely, depending on driver. I did consider the Airbags, which most everyone uses, but for some reason I went Timbrens first - which is more expensive so probably should have been my SECOND choice if I didn't like the airbags. But I read good timbren reviews and like it's no maintenance. Haven't tried yet.
I have a Tekonsha 90160 Primus IQ brake controller.
You'll appreciate the Timbrens. I started running them recently and have been very happy. I was influenced by the Timbren axle-less suspension on my off-road trailer. I liked it so much, I decided to try their bump stops. Been considering adding the to the front as well.