This is one of those things I have been thinking about for some time. I finally sorted it out and made it happen.
I have installed a foot control on my splitter. This gives me foot control of the valve, freeing my hands to perform the manipulation of the wood. I tried it out yesterday and it has made at least a 20% rate increase. Before I would have to reach up and throw the valve twice each cycle, once for down then again to return the cylinder. Now I can get the cylinder retracting when I am clearing or setting up for the next split. A lot of wasted motion and time has been turned into handling and processing the wood.