I think they already got the message. I keep saying "my 500/4 this" and "my 500/4 that", one of them will probably tell me to f off back here if I want to talk about it!
It is a different world though with discussions on race cans, re-chipping the EFI and "double bubble screens (God knows what they are...)
Funnily enough, there are also threads on "will synthetic oil make my clutch slip?" and "how many mpg?" etc.
So back to 500/4s. We never had a '71 in the UK, it was launched here slightly later. Mine's an April 72.