I was originally gonna cut and repost my post here too. But it's just easier to post the link.....

http://www.avsforum.com/forum/161-camcorders/2257274-don-t-bother-uploading-4k-clips-higher-than-youtube-s-video-bit-rate-recommendation.html

I did this to help others to save time on uploading the huge files 4K creates when you don't have to.

Bottom Line: Based on my testing with 100Mbps video Vs. 45 Mbps video .....Uploading a 4K 30fps video to YouTube that has a video bit rate higher than YouTube's 45 Mbps upload recommendation is pointless. Cuz it doesn't improve the quality of the final product at all once YouTube's VP9 compression butchers it in the conversion. Better to render it down in PD14 to a 45 Mbps bit rate clip and get the same YouTube video quality at half the upload time! Sony FDR-AX100 4K UHD camcorder
Sony ECM-XYST1M Stereo Microphone
Sony VCT-VPR1 Compact Remote Control Tripod
Vello VB-1000 ActionPan Stabilizing Action Grip
PowerDirector 14
Intel i7-4510u w/8GB RAM Nvidia GTX 850M w/4GB