(above) Yeah, misalignment in toe-in/out should affect both front tires, as they would equalize and you would steer straight but constant side-slip on both. For skinny bike tires, you should be able to check alignment easy without a formal alignment rack, by just measuring across from tire to tire, aft and center of tread and front at same, unless no clear center tread rib, in which case I would measure from inside rim sidewall on both. If either tire is off in camber (tilt), you should see it, but you can also measure the same across top and bottom of rim to check that, assuming your trike isn't designed for inward-tilting wheels, as some are I think. Regarding that, a bike tire tilted inward, naturally steers in that direction due to "camber thrust", so I *think* (not certain, been too many decades to remember) may need to have a slight toe-out to compensate, so the tires are not fighting each other.