I bought this very clean Minolta HiMatic 9 for an incredibly low price from a yard sale, but it had a stuck shutter and focus ring. I managed to free the shutter by lightly swabbing lighter fluid on it and it fires perfectly at every speed. Even the light meter works in this camera! But the focus ring won't budge. Anyone has any experience to share in how to disassemble and re-lubricate? If it's a very difficult task, I would probably send it off for a CLA. In that case, anyone in the Los Angeles area one can recommend? TIA.