The Venhill self assembly hose system is great, allowing you to get the length of the line right on the bike. With the pre-made system you have to measure very accurately to get the right length hydraulic line made up. However the pre-made ones have the bit advantage then the line bolts on to the banjo via a swivel fitting so the line is always untwisted. With the self assembly system, if you put a banjo on each end and end up having to twist the banjo even 1/4 turn to fit the line looks like a writhing snake. It really doesn't like being twisted. There don't seem to be any swivel fittings in the self assembly range and there should be.