hey maye.
ran fine for about 2500kms.
then I was limiter bashing on a skid pan, and bearings let go.
the squirters are still fine, and in position.
in relation to the extra thick washer, from memory, 2.5mm may have been enough, but it would squirt directly onto the bracing, not under the piston head which is where its meant to go.
either way, good luck.