On my 610, a little tab is ground off (by prev. owner) so that the brake line can come up at a higher angle from the reservoir -- looping more upwards from the bars before it goes down under the bar clamps. You can see the tab missing on the pic below of the 610, and still there on the 630. With that tab gone, the connector can rotate more upwards. This would also allow the levers to be rotated more downwards. Any reason not to knock that tab off? Seems to work on the 610...
Just had a look at my 09 Te610, and notice that I still have the tab (no surprises as I bought it new ) BUT the banjo fitting is curved upward, around the tab unlike the pic in the previous post where the fitting is bent down, which would make it akward. Dunno if it would be possible to rotate the pipe 180 degs rather than cut the tab off. Maybe some of those banjo fittings were crimped on wrong in the factory?
If you loop the brake line up and create a "high point" it is possible that you can have airbubbles collecting there, I do not know if these systems are self bleeding and require that the reservoir is the highest point in the system to accomodate for letting airbubbles to escape through the reservoir.