Using an indoor trainer does have some advantages. It allowed me to finally get around to remapping the shift patterns of the Di2 synchroshift. The new shift pattern works great going up, but it will not allow me to use the shift pattern that I want when down shifting. It forces me to go all the way down to the second lowest gear before it down shifts from the large chain ring. Typically, when I upshift to the large chain ring, I need to immediately downshift 3 cogs on the cassette. The Di2 now can do that for me. Too bad it will not do that for me when downshifting.
There is another mode which will downshift one gear on the cassette when upshifting to the large chain ring, and upshift one gear when downshifting to the small chain ring. That works, but I really need the up and down shifting on the cassette to be 3 cogs.
Another mode is multishift. I programed it to shift 3 cogs. So now when I up or down shift the chainring, I can just press and hold the up/down button to automatically shift 3 cogs. This is also great to quickly downshift when coming to a stop.
The last thing I did was to reprogram the up/down shift buttons. Now they are more consistent, and make more sense to me. Now on both brifters, the higher button upshifts, and the lower button down shifts. Of course old habits die hard - it is taking a bit to get used to the new system.
There is another mode which will downshift one gear on the cassette when upshifting to the large chain ring, and upshift one gear when downshifting to the small chain ring. That works, but I really need the up and down shifting on the cassette to be 3 cogs.
Another mode is multishift. I programed it to shift 3 cogs. So now when I up or down shift the chainring, I can just press and hold the up/down button to automatically shift 3 cogs. This is also great to quickly downshift when coming to a stop.
The last thing I did was to reprogram the up/down shift buttons. Now they are more consistent, and make more sense to me. Now on both brifters, the higher button upshifts, and the lower button down shifts. Of course old habits die hard - it is taking a bit to get used to the new system.