Re: Tippet material
ABSOLUTELY! on everything. 3X is a 6lb so to speak (depending on different manufacturers) And I use 6 lb Fluoro all the time. Much cheaper than tippet. Bigger diameter pound for pound, but with the size flies you are talking, so what.
It will depend on the fish you are going after. If I am fishing Wipers, I would be using the same size flies but I would probably use 8 lb to 10 lb. same with CARP.