Weird Triple loop idea need advice.

[MagisD]

So in my current build OverKill cube I ended up with a spare set of pumps.

I now have here
2x mcp-655/with koolance Cov-rp450 and direct attach res's
and
2x Mcp-35X Pwm pumps with Direct attach res's ( I might not use the res's)

I can do separate Res's or a conjoined res for all loops

I have 6 quad 120 rads (mcr-420's ) and 4 blocks

Loop 1
Koolance Cpu-360 rev1.2
and Mips Corsaoir ram block.

Loop 2
EK X58 Sli LE MB block
EK 5870 Gpu block ( preinstalled on Powercolor LCS)

I'm planning on running both loops on the mcp-35X's one each.

My question is ( not buying any more tops/fitting etc )
Should I,

A. Run both loops with 3 rads per Separate res's

B. Run 1 loop for blocks 1 loop for rads Common res.

C. Add a third loop with the Mcp-655 just for the rads and Just keep the Mcp-35X on 2 blocks each. Common res.

D. You have a better suggestion

Just slightly overwhelmed with Config options since I impulse bought 2 mcp-35x