I have an 8 and an older gold metal bodied heavy electrics one I’ll dig out of the garage when it’s cooler.
The metal back plate on the AVO is a great disadvantage I find on car electrics I find and their bouncability is not good.
They are romantic things but too cumbersome and liable to cause damage working on the Morgan’s and the thermocouple is a handy feature on the RS one.
We were issued with all singing dancing Flukes at work and they were very good indeed.