With 200 yds of 30lb Dacron, It takes a 9/10 midspey with plenty of room to spare, a 9/10 SA short head pretty close to full and I think a 9-10-11 WC with plenty of room to spare. Unless you are sticking a 8/9 Grandspey or XLT you should be just fine.
I Have one for my 6126 sage with 6/7/8 WC and one for the fly logic 14/8 with 9/10/11 WC. There is plenty of room to spare even with the 9/10/11, however bigger longbelly's may be tight.
BTW, the new Bougle' has a different sound than the mk 4. It comes from being drilled out.
A forum community dedicated to Spey casting, fishing, flies, and enthusiasts. Come join the discussion about trails, licenses, fishing, game laws, styles, reviews, optics, accessories, classifieds, and more!