Practices and conventions can differ slightly between TV and motion pictures. And, unfortunately, even between production companies.
1. If you are the producer/director, write it in the way that is clear for you in visualizing and executing the shots.
2. If you are writing this for a production company, check with them for how they want it formatted.
3. If you are writing this to send to someone for consideration, send a spec script, not a shooting script. In the case of a spec script, the consideration is dialogue.
3a. If there is dialogue involved, by all means give each a separate slugline. You don't need a CUT TO:.
3b. If it is just a sequence of shots, then "SERIES OF SHOTS - ..." with numbered or lettered scenes works. (Letters are preferred since the scenes get numbered in production).