Ha! Lloyd, I just see "desperation".
like, you've tried everything else...
A short story:
My genius junior college automotive instructor told us a story when he was service manager at Cadiilac.
They had replaced WHEEL cylinders on a car...
Keep in mind this guy is scary smart...
They COULD NOT get good brake pedal. EVER. Readjusted brakes a dozen times. Bled brakes fifty times, etc. PRESSURE BLED AS A LAST RESORT.
No help.
Customer on the phone "WTF is my car???"
Mr. Parlier instructs his mechanics to...get this...."rebuild the new wheel cylinders deep in a pot of fresh brake fluid".
And they did! HA! What a mess!
NO HELP.
FINALLY, genius Mr. Parlier gets his pocket caliper out and measures wheel cylinder diameter.
Wheel cylinders were wrong, INTERNALLY. Looked perfect, externally.
THIS is where I learned to always double-check advertised cylinder bore on any m/c or w/c.