Ok here are my suggestions if you aren't already, get some linner brake housing. If you can't find any long enough you can sub so shift housing, but get the Jag kevlar wrapped stuff, normal shift housing will blow up under braking. Make sure you are using reenforced housing caps so the casing wires don't come through. Make it long enought to get 2 full turns on the bar, then grab 2 zip ties and secure the loop of housing to the head tube like I did in the picutes, this keeps the housing from fouling and getting cought up on other things. Long standard brake housing compresses and flexes too much causing your brake to engage, linner housing wont do this. I ran a cable set up like this for a year with no problems.
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I am running hydros no and still have enough hose for 2.5 spins, the extra half is for missed catches so I dont rip out the hose, I still say just learn to back spin like spin natural ride for a bit and then just spin opisite and think nothing of it, its how I unwind mine