I do not have much experience with fishing sink tips. Is there a significant difference in depth achieved when fishing a #6 tip for a WC 8/9/10 compared to a #6 tip for a WC 9/10/11 all other things being equal? How much difference is there in depth achieved with a tip compared to a sinking poly-leader. Is there a good reference where one can find info on fishing tips effectively? Thanks in advance for your help with this.