A central mirror is a big help with rear vision I find. I have one fixed to the central support on my Fairbourne screen but there are ones on a stalk mount that work well with the small aero screens as well. Back on topic, I vote for the masking tape fix as well, it works for me.
![[Linked Image]](https://www.tm-img.com/images/2021/10/22/mirror.md.jpg)