Izorline Fluoro Carbon Wind-On Top Shots are the fastest, Stronest, and easiest way to connect Spectre/Braid to Fluoro. There is a small learning curve to fishing Wind-On Top Shots, the Izorline Fluoro Carbon Wind-On Top Shots have a spectra loop on the end so you're going to need to serve a loop in your hollow core spectra to make the loop to loop connection and if you do not have hollow core then, you'd have to tie a Bimini twist loop in the end of your solid spectra to make the right connection.

A Wind-On Top Shot is one of the most in-line connections from braid to Fluoro making it virtually silent and smooth going through the guides on the rod. Also a Loop to Loop connection is the strongest connection for spectra to Fluoro.