Here's and obseration from running AM on 6 meters. In many cases, the ops run a classic AM TX, but then receive on something modern. So, my TR106 is off freq by 1.5KC due to the crystal I'm using, and I get razzed about it. If they were using a classic receiver, selectivity and the fact I am 1.5k off wouldn't be a problem.
Charlie W4MEC in NC