Line Lock Solenoid question

I plan on just locking the fronts and if Im mounting it between the MC and Dist. block. Placing it there will lock both front wheels correct? So I only need 1 in, 1 out, right?!?!

Thats how mine was installed although the dumb arse who installed it did plumb it to the rear brakes and wondered why id didnt work. Ive removed it for now as vehicle will be going back home to New Zealand in July and wont be registerable if fitted. Ill refit once registration is done and will be able to get around it for its 6 month saftey checks easy enough.