Please allow me to join the discussion here,.
Even if i have made only few posts on this forum, i've been collecting (gen) watches and repairing them for many decades. This doesn't mean that i know it all, but..
The misaligning of the center chrono second hand after a reset is usually due to the hand sitting too loose on the shaft or the central tube coming loose from the hand.
It is a manufacturing tolerance and/or materials problem (The tube on "cheap" second hands are often made of soft and deformable metals and the quality of riveting both parts together is also very poor.. )
It was a very common on the old (gen) Russian chronographs. I used to fix them all the time, as they were manufactured in large quantities without much QC, a bit comparable to the reps we see today. On a high quality gen (with proper servicing) you will almost never see this happen... .
You could try to glue them (if the tube and hand have separated, that is.. I never glued the tube on to the central second shaft, because you may have to remove it later and it does not really remove the cause of the problem), but from my experience, there's only one way to solve this permanently: change the whole hand for a new one, with closer tolerances.
It should fit really thightly.
As far as using the chonograph function: if the watch is properly made, or if the hand has been fixed properly, there is no reason at all for resetting it only close to "12". It should return to zero whatever the stop and reset position is.
For a rep chronograph however, it is sound advise not to reset it too far from zero.. but it should not be like that ....
Just my 2 cts..
Regards,
Lewis.