Replying to Questions on follow cam framing / post reframing

Hey yall this is directed towards the senior ns filmers such as evan and Gavin, I notice on the jump lines and alot of rail shots of yours as well as ryans from simple that you guys have almost perfect framing without chopping the feet or head unless it appears intentional. My question is are you still using a wide angle or a prime/ zoom lens what focal lengths do you prefer? I have a 10-18mm and a 24mm prime. My prime is hard to keep steady even on the rails. On to my second question, are you shooting in 4k for example and putting the footage into a smaller 1080 sequence to back scale the footage so you have in essence a 50% re frame in without image quality loss? If that is the process would it work the same for a 1080 down to 720 sequence or would that compress too much since 720 gets blown to 1080 on screens. Please let me know! Or any tips to help my framing be smooth. What's your preferred drop times?