M3 slow speeds intermittent instability ?

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alexz

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I have my looking-worn and beater M3 that has been thoroughly CLAed by Youxin about a month and half ago. Youxin worked wonders and revived the camera to the new life making mechanics (and advance + shutter) so smooth and nice to feel, just sings...
However, upon arrival the slow speeds (slower then 1/30) didn't work properly, apparently got stuck at higher speeds (worked at approx. 1/30 no matter at which setting: 1/15, 1/8, 1/4, 1/2 or 1 sec). The camera has been sent back to Youxin, he kindly accepted it once again for fine tuning, figured slow speeds mechanism wasn't engaged, so he made it up and I got the camera about 2-3 weeks ago back.
So far it worked fine, however I rarely happen to shoot at slow speeds (very little of low ligth opportunities so far), shot down to 1/30 at the slowest, but excersized the shutter at slower speeds as well a few times a week.
Few days ago I noticed something that made me a bit upset: slow speeds begun mulfuncitoning again, work inconsistently, sometimes do work at their designated speeds, sometimes got stuck at higher speeds. Unpredictable.
I contacted Youxin and waiting for his response, but meanwhile I'd like to hear your opinions. Did anyone encountered such thing with M3 ? What it can be (working fine then starting slipping to higher speeds....) ? Any thoughts ?

Thanks in advance, Alex
 
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