Aha, I wasn't sure. It could be that you compared different graphs too.

Yeah, more data points would be nice. I'll try to work something out but I am not prepared to invest in ball bearing blocks. I do have some more line dimension but not of the same type of line which might work against me.

And today I found an error in Fig. 4. I'll see if I can find time to up-dated the report this weekend. The error has some impact on my conclusion so I'd better double-check :-)

/Martin