30 fps and 60 fps rendering
 

If you had several clips in one timeline and they were a mixture of 30fps and 60fps clips, would you render the whole thing as 30fps or 60fps?

Allways render your final project with 30 fps I dont think it rly matters but u prob get a smaller file size, the higher the fps on ur clips the better when u gonna do slowmotion, but the final clip dont need to be more then 30fps if I belive it right.

The above poster is correct. 30FPS should be plentiful when rendering out the final movie. Higher frame rates, such as 60FPS, is only used when recording to make editing easier, but very rarely in any finished product.