Whats a good way to get up the mast on your own?

[BobnLesley]

...commercial power boats would speed past my walk on mooring and even they would be reported no action was ever taken.

A few years ago whilst in the USA we took the boat way up the St Mary River (off the Potomac) specifically to have a quiet spot to fit a new vhf antenna and cable and also try to repair our electronic windspeed indicator. We went midweek, so virtually no river traffic until a US Coastguard rib passed us at perhaps 20 knots, slung a high speed U-turn ahead of the bow, then a second u-turn around the stern and pulled up alongside to enquire of my wife what she was busy doing? Rather than say anything - she was livid! Lesley simply pointed to me at the masthead; the skipper's look of embarrassment was visible even to me fifty odd feet up.

 

[BobnLesley]

... a long-time caver. ...The worst part of it for me is that it's all done in the light, and the higher you go up, the wobblier everything gets...

i know that feeling. I originally learnt my climbing as a caver and reveled in how much easier it was when you're, going up rather than down, are in full daylight and the rock you're climbing's dry.
I'd agree that the safety line's an annoyance, but it's less so than listening to Lesley bitching at me throughout if I don't take it, particularly as she (indeed all non-climbers) invariably keep it too tight.