Hello Roy Burns, I got fed up with bikes sliding backwards on paddock stand cups (and wedging into the exhaust can) - so I have the swingarms modified. Please see pictures attached. The chap who does this is an expert in welding aluminium(!!!). Swingarm removed, modified, linkages serviced while it is off and then replaced. Usually a Winter job due to the turn around time. I've had this BlackBird on these bobbins for a couple of years now: works really well, all positive, no regrets.
IanDoohan sounds like you do the same thing?