Re: broken tip and performance
Doubtful most humans could tell the difference--I know I couldn't.
I don't know if Redington uses a thermoplastic glue for the tips, but if so you might be able to extract the broken piece and re-use the existing tip guide. Grab the rod stump with a hemostat and gently heat the tip guide with a heat gun. If it is thermoplastic glue the tip guide will slide off the rod stump after a little heat is applied.
Others may be able to tell you if the above is a futile effort.