I had good luck with Equal on my previous coach with both Goodyear G670's and later with Hankook AH-12's. Both were smooth.
My current rig has Michelin XZA2's with some powder or beads used by the selling dealer when they replaced the tires. It was not Equal but some other brand of either beads or powder. I have a problem with a steer tire/s hopping at higher speeds. RV Dealer says to have someone 'true' the tires and will actually pay for that if I bring the coach back to them (300 miles). A local fleet dealer who sells Michelins does not recommend or use beads or powder and wants to demount the front tires, remove the beads, and spin balance on his Hunter equipment. If a tire is not round, he will replace it.