Two 476's?!! That is just plain greedy lol.
Yeah it is a stonking rod, absolutely laser sharp and never feels wimpy in any way, given it's obvious shortness, flex and line weight. I was quite shocked how it casts and feels as I hadnt cast a glass rod in almost 30 years!
Im using a smallstream wf4 and feel that it is ideal. I reckon you could go up or down a size but I think the ss wf4 is bang on a match for it.
I see epic are now doing there own fly lines, so I assume they would be an ideal choice also although once you factor in shipping costs etc a lot more expensive.
On a side note, seeing all you guys on The Don and Deveron catching these big trophy browns is making me very jealous, not seen anything like these in my rivers down here (yet) this season!!