[SLA079] 8L35 Accuracy

How well are the 8L35 movements supposed to run? I got my 079 three days ago and it’s been all over the place. +7 the first day -17 the second day and now +5. I think the second day is an outlier since I didn’t move my arm that much but still… took it to a watchmaker and before we wound it it was reading at +17 187 amplitude - it is supposed to go that low? After we wound it 25 times it read +6 270 amp 0.1 beat error. Did I get an healthy movement? He keeps telling me I need to send it back