Thought it would add mechanical advantage.
Discussion
I think youve only got 1:1 there.
All your pulleys are static on a single anchor point.
I could be wrong, i'm wrong all the time.
Not to worry theres an easy way we can test this!
If you hoist the rope a measured length, and the rope pulls through the same length on the other end, there's no mech adv.
The blues can be unbolted and attached to your carabiner, these will be your load side pulleys.
Move the pink to the end of the arm. 