The Macnaught KY+ coupler "sort of" sealed on one of the FEL zerks for a couple of pumps, before oozing out between the zerk and the coupler as the pressure built up.
So for me, it'll be the KY+ for the 4-in-1, and the Alemlube coupler for the rest.
Here's a better photo of the zerks. The KY+ seals fine on the taller one on the left:
So for me, it'll be the KY+ for the 4-in-1, and the Alemlube coupler for the rest.
Here's a better photo of the zerks. The KY+ seals fine on the taller one on the left:
