Re my commute: Thanks! It may seem far but I got thoroughly used to it. Then when I was away for 2 weeks without riding, I bonked on the way home a few times before I got the old form back.

Re chainring: I can implement the solutions that exist, but I like the look of the genuine R20 crankset, so I had it replated. So I am kinda "stuck". Plus I am now satisfied I can tour Tasmania with the existing setup, so at his stage I foresee that it will stay that way. Plus I now need any spare money to build my new Swift frame into a bike.