The CS45BN is one of our most popular pike hooks. Due to the very large gape it's a real CLAW and has perfect hook ups. It is barbless, so much more fish friendly. Remember always prefer catch and release. There's no need to be afraid of losing the pike, because of the nonexisting barb, you only have to keep the tension, which you should always do anyway.
The sizes # 4 - # 1/0 are perfect for walleye and perch, for pike it is most common in # 2/0 to # 6/0
Conclusion: if you want to tie pike flies, take a Partridge CS45BN.