I use a fullers earth mixture on the leader, it does degrease, but I think more importantly is that fuller earth removes the shine from the line so theres nothing to flash as the line moves in the water.
The detergent part in the mix can now adhere to the line easily because of this abrasion & cut through the waters surface tension, the glycerine in the mix stops it drying out too fast.
if you want to use a floatant when dry-fly fishing, that sticks easily too
Its often recommended that buzzers are fished static, we're all going have our own favorite way to fish no matter what we're using

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I've watched buzzers in the water they sometimes move a lot, so when I fish buzzers I use a
very slow figure of eight to pull in (just enough to keep in contact), with a sharp burst every so often.
I've found fishing them a few feet under a sedge also works well, especially with short sharp busts from time time, the movement of the sedge on the surface attracts the fish also lifts the buzzer & puts some life into it, then the buzzer can slowly sinks again (even slower with mono or copolymer)
You don't say what fluorocarbon you're using? but to keep prices down you could use some of Kamasan's Bayer Perlon line, its cheap enough & its good,
Paul