to be honest - and sorry if this sounds negative gents - but the one thing I kept putting off was getting the alarm (Datatool)
removed from my Strom. It was fitted professionally by the previous owner, but I dislike them, as they are accidents waiting to happen. Sure enough, I put off getting it removed until it started acting up , chirping like a canary on coke, disobeying the fobs, and almost having me stranded in the Highlands! My bike is an 08 and the alarm had lasted 3 years...
If you've got them in nice boxes still, think about
getting shot of is my (admittedly unasked for and very jaundiced!) advice!
Just read what you said, Martin..its about weighing the risks, as usual. There'll be people whose alarms will never act up or fail. I just saw the risks as too high for any value received, especially as the bike got older. But it is a personal thing, and depends on circumstances. If I was parking in London maybe I'd think differently about the risks.