Not anymore Adam, I now use a card wad instead, but felt wads are bound to improve round ball shooting if for no other reason than that it protects the patch from all sorts of bad things that come from hot explosive gasses.
The other thing about it, is that your use of various powders, like 3F, won't damage your bore or your patches quite as much, and in MY OPINION, makes the lube you use on your patch less of an issue, meaning anything slick will work pretty good, though if you want the best of accuracy, you still need to work up a lube you can adjust to your shooting conditions. I use a mixture of ballistol or cutting oil and water that I let dry in different ratios to try to get the best from my guns. However, since I started using wads, I've found I can use even murphy's oil soap and alcohol (my cleaning solution) as a lube and get the gun to shoot ok on the range (I wouldn't dream of this hunting).
Aloha...
