I have been away with work a lot so not done much since then but made another flat panel last week. This time with a soric core. The surface finish on this is much better but it is possible to see some cloudy streaks in the finish. How is the best way to minimise these in the future? 

There's a few things that can do it though. Oil on your hands, too much Easylease, and only using one application cloth for all the coats. You should always wear gloves, only use a small amount of release agent (if it doesn't evaporate within a couple of seconds of wiping it on, then it's too heavy), and always use a new cloth between coats. 

I'd been using 2 microfibres cloths; 1 to apply and 1 to buff. What would you recommend using instead?