Is LongGOP OK for editing?

Help & Support
1

Good explanation of LongGOP:
http://tiliam.com/Blog/2015/07/06/effective-use-long-gop-video-codecs/

Defending the LongGOP:

Choosing the right codec:

2

I find long-GOP too heavy on computer resources for anything other than a very short movie. Its far better to transcode to an all-i format first, such as DNxHR_HQX. The file sizes will be a lot larger, but the computer can cope with them more easily and the resulting edit is much smoother.