I was about to ask the same question as @andyp would love to hear more .. any reason you went from canti to mini V? I've heard (and had a very little experience) that cantis can be pain to maintain/set up. Also googling TRP 8.4 v 9 suggests 8.4 are for shimano and 9 are for campag and sram .. only asking because I'd be building a similar bike soon.
I was about to ask the same question as @andyp would love to hear more .. any reason you went from canti to mini V? I've heard (and had a very little experience) that cantis can be pain to maintain/set up. Also googling TRP 8.4 v 9 suggests 8.4 are for shimano and 9 are for campag and sram .. only asking because I'd be building a similar bike soon.