Slightly off topic... anyone notice better fuel economy with shell v-power? I know its better for the engine according to HonestJohn. In my experience with the old mk1 jazz and this jazz (although only half way through 2nd tank with this jazz / 1st tank was dealership fuel) ive found better economy with 'cheap' fuel... but its a very unscientific observation. I want to stick to V-Power - and need to work out how much extra cost it adds over a year of travel.
I found better economy with higher octane but would not use it every fill-up, may be every third or fourth. I also put a bit of redex in every couple of months and have never had a problem with fuel system on any car or motorbike I have had (when I put higher octane in one of my bikes it actually ran worse as the bikes ECU could not alter ignition timing to make use of it). Modern car and bike ECU are well capable of altering ignition timing to make use of higher octane and IMHO feel smoother and perkier. Handbook says minimum of 95 octane, but no maximum stated, for other parts of the world the engine may be modified to run on lower octane fuel.
Don't worry about damaging your Honda engine, all mine have done large mileages and have bounced off rev limiter more than once. Just keep decent oil in the engine. Take it easy for first couple of thousand miles is all modern engines require.