I've used the Scientific Angler tippet and it worked fine for me. I was using Orvis Super Strong for a number of years but decided to try Stroft (mainly because I found it on sale) however, I found that it performs very well and that I like it as much as the Orvis Super Strong. You can find the Stroft on sale at SierraTradingPost.com if you're interested in giving it a try. Admittedly, most of the tippet materials offered at Sierra Trading Post are for big game fishing and as such are too heavy, you should be able to find some that you could use for regular fresh water fishing. Just a thought...

http://www.sierratradingpost.com/s~tippet/?perPage=96

Jim Smith