Mixed Resolutions in one edit.

have an A7iii and an a6400 - neither are capable of shooting 4k 60fps to produce 4k slowmo - however I predominantly shoot boxing promos.

Is it acceptable to switch down to 1080p slowmo mode and then back to 4k 30fps and switch in between for the shots i need. It’ll obviously give me a shoot of mixed 4k and 1080p - Perhaps then rendering the whole shoot out in HQ 1080p?

Not sure how badly the differences will look in the final edit. Anyone else do this? I just don’t want to shoot the whole thing in only 1080p

Cheers