Where is it leaking from? The faucet or the shank? I just got 2 Perlick 575ss and one of them leaked 4-5 drops a minute. I took it all apart, cleaned it, and started over. Still leaked out of the faucet. Woke up today, drip tray was dry. Must have fixed itself overnight.
If it's leaking at the shank, probably need a new o-ring or flip the one over that you have in there and see if that helps.