Tommy this link may help.....It's an evaluation of high performance spinning reels and reference to rods used.....I find a stiffer (faster action) to work well if going for distance. I used modified HDXs for the demo, both with tournament butts. The tournament butts were used not only for their stiffness and power, but so I could get the distance from reel stem to gathering guide set properly for performance, since the tournament butts are longer. The assemblied HDXs were around 13'5". Most setups, especially factory rods, have incorrectly allowed for the proper distance. I did not use low riders in this comparison, but have used them often and find the Fuji recommended 47" to work well. I believe I used 54/55" and Fuji high frame size 30 for the gathering guide in this comparison. Again, my demo was for a comparison between two reels using 8 oz, not distance per se. With the power you can generate, I would recommend not deviating from your rod selection you use for conventional/mono. Just please ensure you use the leather thong, or finger protection of your choice.
I've done a significant amount of testing with high performance spinning reels and rods and find the distance from reel stem to gathering guide to be paramount....where longer is better than shorter....I do not have specifics as to where the point of diminishing returns occurs, since it is rod/reel specific.
One thing to note....I believe I can say with some confidence, that the setup of your right arm/hand is slightly different than with conventional, permitting a different interaction with rod dynamics. With spinning, for right hand casters, your right hand is more naturally under the reel (reel is opposite the hand, on other side of rod), allowing for a more natural push with the right arm than with conventional, where reel and right hand are on the same side. For me, this feature allows for a more natural motion of push/pull (fulcrum action) than with conventional, and tremendous power can be generated. I believe folks who do well with spinning distance take advantage of this feature, whether they're aware of it or not. I know you have tremendous power in your arms and shoulders and you may be able to leverage this asset during your spinning trials.
http://www.pierandsurf.com/forum/showthread.php?t=53584&highlight=technium