get the scope outside as soon as the sun sets. That beast takes a while to cool down.
One of these setups is mandatory I reckon to get nice stable seeing:
http://www.deepspaceproducts.com/tem...4243_9332.html
or alternatively, one of these:
https://starizona.com/acb/Cool-Edge-...P3386C804.aspx
The C14 takes forever otherwise.