For the 3:1, use a revolver carabiner under the basic, with the little pulley built in to it, it takes out enough friction to work.
As for your friction hitch, are you using the supplied beeline? It might take a few climbs just to get it broken in. Experiment with how many wraps you have as well, different people, weight, different number of wraps...
I use a bent gate carabiner clipped into the same bridge ring as the HH biner, for reducing friction where your rope comes out of the bottom of the HH, seems to work just fine.
As for your friction hitch, are you using the supplied beeline? It might take a few climbs just to get it broken in. Experiment with how many wraps you have as well, different people, weight, different number of wraps...
I use a bent gate carabiner clipped into the same bridge ring as the HH biner, for reducing friction where your rope comes out of the bottom of the HH, seems to work just fine.