Tut,
I've used RST #8's for woodcock and grouse, but recently switched to #7's and like them more. I've used thier #5's for pheasants in North Dakota and they worked very well for me. My standard now is RST 2 1/2 1 oz. paper #7's in the right barrel and 2 1/2 paper #5's in the left barrel in 12 ga. and 7/8 oz. in the 20 ga. Both are choked the usual IC/MOD and fewer cripples. I've checked with Morris at RST and was told that his #7's are true #7's.
On long pokes with the left barrel, it's nice to have the #5's in there.
Karl