I have finally fitted the new crankset, when I opened the box the crank arm bolts were missing. Spa Cycles were very quick and the bolts were in the post the same day. I then had to wait for the weekend and finally had time on Sunday.
Everything went on quickly and without any problems. I didn't have to shorten the chain or lower the FD.
I am loving the new gearing, it certainly suits my riding style. Plus having to fit the new stuff spurred me on to clean the bike in minute detail, so it felt especially good to be out on a sparkling machine.