Jayvee,
The 40+ is a great line for it's intended purpose but has some flaw's indentified by most
-Welded loop from head to running line can be a nuisance for some
-Unless the complete head is outside the guides they can be awkward to use, fully dependant on the caster
-The original 40+ers had issues with coiling in cold weather, my last of 2 purchased had zero issues so I believe airflo sorted this.
-I would relook at what your useage will be (as you mostly nymph fish), Would it be used for dry fly? hopper droppers?
Max is right, they sure can cast....
Regards
Dean