I have an upcoming 70.3 race. It's a rolling course with a 2,3 relatively short hills, nothing special, but you have to use a small chain ring (if you're not Peter Sagan). Did it last year, so I am familiar with all I have to be :)

Recently I've changed my bike. From 2013 Canyon Speedmax 2x10 DA di2 to a 2017 Canyon Speedmax 2x11 DA di2 with zipps 808 nsw. I still have my "old" Super 9 Zipp disk but with the 10 speed freewheel and I have to buy a new FW. OK, I will, but do I have to bother to do it right now?
How faster I will be (or will not) with the Super 9? If we are talking about some seconds or a minute, I am ok with that and will go with 808 on both wheels...

Thanks!