The vape system is very stable. I would say it’s one of the best upgrades you can do. I have used them on all my mz bikes and will be fitting one to my dkw.
I ran one on a ts250/1 for 20 years as daily transport without a problem. I would suggest the battery option and keep it charged up if you don’t use the bike often. I fitted the coil to the front facing side of the battery holder and the regulator underneath the holder. Only four small holes and a neat install. Well worth the time. Just follow the instructions take your time.