Yeah, when you're removing plant material it's best to only remove 1/4 to 1/3 of the plant. Otherwise it'll be too much stress and stunt growth.
I'd remove all the branch cluster at the bottom where it went from clone to normal growth...
Usually there are 6-8 branches/nodes that form really close at the bottom, within 3-4 inches... then they spread apart towards the top a bit more like 1 inch apart each.
You don't want to remove that much after week 1, I try to get all my ducks in a row before that, I trim up before flowering, and catch up after the first two week stretching period...
Just for all you skeptics out there... I did leave 3 super skunks untrimmed, to show the difference between grooming the plant and just letting it go... For now, the trimmed plants are a bit taller, and the buds seem to be denser and larger... No way to tell untill harvest which is better tasting, yields more... Etc.