6'6" rods are my sweet spot for skipping.
I use a Dobyns Fury 662 spinning for weightless plastics....even though it's a ML rod it has enough power to handle big fish. And enough "tip" to really load up a zing a D-shad, 4" + 5" senko, or a 1/15th or 1/10 oz ned rig as far and as accurately as possible. Light wire hooks are a must for this, your not going to stick a super line hook very well into a fish with this rod.
And I use a 664 casting for skipping jigs and t-rigs. About the only thing I skip on a 7' rod is frogs, and I use a 704 for that. Believe it or not, heavier line skips BETTER on casting gear, and the exact opposite is true on spinning gear. I use 50lb braid on the 664/704, and 10lb braid on the 662, with flouro leaders (or straight braid if frogging) sized to the cover at hand. Usually 15-17 lb on the casting rods, and 8-10 on the spinning.
Bait profile plays a HUGE part in skipping well with a casting rod. The flatter the better. Things like arkie jigs, beavers, etc... skip like a dream on a casting rod. Baits with lots of flappy appendages DO NOT. 5/16-1/2oz is the best to skip with. Yes I CAN skip a 1oz jig, but even after skipping with a casting set up for years, picking that up is like learning to walk all over again sometimes.
For me the best reel setting on a casting reel for skipping is VERY loose spool tension, to the point that if your not exp. with casting reels, you'll backlash every time. BUT I run a lot of brakes to make up for any "thumb" errors. On my reels (Daiwa Fuego CT's) I run them on about 14, where in normal casting I run them on 8.