Thank you! My Omnimount has diagonal brackets - it should be okay. The guy at Richer Sounds suggested it was strong enough to withstand gentle movement on a well balanced arm.I have the TV mounted on the Sanus full motion mount details as below. I use the cloth when moving the screen but the TV is rigid enough to allow movement.
The only slight problem with this mount is the mount brackets which fix to the rear of the TV via the VESA mounting holes are horizontal (as seen in the picture below) and clash with the one one connect outlet point of the back of the TV (I had to a put a spacer there to allow the connect cable to pass underneath the bracket). I would therefore check you mount has vertical brackets ideally
Installation Manual Product Specification The SANUS Simplicity™ SLF226 full-motion tilt and swivel TV wall mount fits flat-panel and curved TVs 37” – 90” up to 61kg. It is capable to move your TV from 6.8 cm to 66cm away from the wall. The dual articulating arms on the SLF226 let you extend...www.costco.co.uk