VSF consistently has thicker/bigger black line compared to gen and cf in all the pics imo....the best combo would be vsf crystal and movement in a cf case with vsf clasp + cf bracelet haha
I used to be like you, chase perfection. But now after 2 years and 50 replicas, buy a VSF, enjoy it, don't worry about such things. There will always be things to be nitpicking about replicas. It is pretty much pointless to nitpick these details, I promise if you buy both VSF and CF and hold them in hand you'll shrug because they pretty much are the same.
This is coming from someone who had handled Clean and VSF 116x and 126x series.