This solution can definitely be improved upon, but I am satisfied enough with it to submit. I believe that if I assemble the compound first, and reduce the number of hand-offs I can improve it further. I calculated that 9 [4] should be possible(I haven't played this game in 3 years so I might have fudged the numbers). In any case, I'm aiming to improve to at least a 12 [4] if I have the time to do so.