Harry,
I am sorry that you Alwin showed a lack of interest for your concerns. I am unfamiliar with the perfomance issue you are discussing.
If you still have the information you passed to Alwin could you send a copy to me and to Jens Ackermann at <font color="#0066cc">[email protected]</font>
The designer of the equipment is Dr Anselm Fabig and it is important he be consulted if there is a potential  issue with our equipment. Many thanks for your years of  loyalty to Weatronic and our equipment. Larry