Ulrik Heltoft

I have a new Merlin, and have trouble getting it stabile. Camera is in the cookbook and I have read the manual and viewed the dvd several times but it's still dangles. Drop time is 1 sec. as it should. I've detected 3mm up and down play and 1mm sideways play with the screws tight and hinge locked. Is this an acceptable tolerance? Thanks, Ulrik