A friend has bought an alu bike s/h with retrofitted Di2 (lots of sticky tape). He wants to move all the bits to a carbon frame he has, specifically a Boardman Team Carbon. Any tips?
First rule of di2: The cable you have will be the wrong length...
Second rule of di2: The shop selling di2 cables for considerably less than everywhere else, will invariably be sold out of the cable you need.
More seriously, make sure you use the proper tool for inserting/removing cables.
What sort of battery does he have currently?
If you have a working di2 install, it shouldn't be too hard to migrate it. For internal routing, the way it's supposed to be done is you put a cable tie round the cable, to stop it flipping about. If it's already installed, it won't have these in the box.
Any questions, just ask, I'm getting quite good at di2 now...
J