I do not have any hesitation of any powered units on any switches any where. However, most folks would disagree with how I solve that problem.
If there is ever any hesitation detected I look for any obvious problem with the switch. If all is right there I look at the locomotive and ask myself "Do I really like/need this engine?" If the answer no, then I simply low ball price it and dump it at the next train show. (Blew out four of them last Saturday!).
If the answer is yes I give it to Bob Buck in York and have a on board battery R/C system installed.
I do not tolerate problems. This is supposed to be fun hobby, I retired from angst.