[sethw]

It will certainly depend on the flow rate into the cylinder, but in my experience the additional force provided by the larger bore cause the piston to accelerate more rapidly, and hence extend in a shorter time. However, the systems I was working with when I made those observations were a good bit larger than those we're working with in FIRST (especially the tubing). If the flow rates are low enough here to counteract the greater force of the cylinder, I stand corrected. I haven't tried it yet with these components.