Originally Posted by
miyata man
Ok. In one corner we have a singular opinionated cyclist. In the other we have a groupset that has been intentionally designed to be incompatible with everything else on the market multiple times throughout its lineage. In any number of other scenarios you would be right but please take the time to make sure of the facts as it is relevant to your build. I stand to gain nothing by taking the time to illustrate this phenomenon but a warm fuzzy feeling inside for giving you pertinent information you didn't have.
So what you're trying to tell him is that the bike he is currently riding, and shifts fine, actually doesn't work. But some how he hasn't noticed this? And of course you were able to deduce this over the internet without ever actually seeing it? Are you some sort of super hero or something?