thanks all for all the info

I must say it's fun being new to a well established forum and getting numerous detailed and informative replies such as these.

Hakan, your suggestion is interesting, but as i'm not a usa resident, just the shipping cost of testing a few will be more then choosing well at the first place - hence the questions.

I might be in the states in a bit (work related), so maybe I'll postpone until I can get there and see for myself. on the other hand, emailing SRD somehow didn't occur to me

we'll see