I have also a question as to what tracking device to use. I would be interested in getting started in astro and after reading this thread I looked into the skytracker. Problem seems to be the payload.
I have a 1DXII and the "lightest" lens I would want to use ist the 16-35/2.8III, so well over 2kg in total. A read on several occasions that 1.5-2kg would be the highest usable payload for that tracking device (I think it's rated for 3kg by manufacturer), so my question ist: has anyone here used a similar combo, or an even heavier, with that tracker, or what would be a more suitable device?