Halfabee,
I could just about say the same as Harrow myself. One key point I like -
'it was all thanks to getting some decent modern gear, and a commitment to improve.'
this was about 5 months back for me. I just wish my father would follow, he's in a similar position as you at the moment.
It all started happening for me as soon as I made the decision to jump on a smaller board. I began waterstarts and tried gybing more often on my tiga 120L before I moved to a smaller 81L waveboard (weighing 60kg back then)... Now, it did take me a few session to start feeling comfortable on it, but 4 months later, I'm now pulling off a couple full planing gybes, very consistant at slow flare gybes and now getting into the groove of jumping chop!

(up at 70kg now

)
Some quick points from myself:
Learn the waterstarts on something that can float you easy (perhaps your bombora)
If your going for a smaller board, don't worry about the gybes too much. I'll say so myself, my waveboard forced me to start gybing well and it worked!
Don't forget the different factors that come into play if you were to consider where you sail - pick a board for the right conditions

I'll follow this thread as I'm still weary of what to try and get father on. Perhaps my old tiga 285?
James.