1. You burn your electrocity for your own return, fastminer draws less power.
2. Claymore and phoenix does perform a little better at your end, but the difference is so little that a little fluctuation of the pool could wipe it out.
Why would i use this over claymore or phoenix?
Just because its "free" that doesn't mean its better and you haven't posted anything indicating this is better than what already exists.
In my opinion your incompetence with this thread post probably reflects your incompetence with miner's code.