Trying to understand different pruning/training methods

First ever go at this and is mainly a bounry finder for what I can get away with. I'm making different threads on different methods to learn more about them and there benefits. I have a health sprout that's a week old and want to train well.
Explain pruning benefits
Once big enough to curiously prune I did weekly light pruning. Then shortly before week 6 I removed all but the top 2 fan leaves from stalk. . Is there a method of pruning them? Pic #1 before pic #2 after
Pruning when lollipoping?
My stalk is where I want it and plant is beginning to flatten (normal,good)? My 4 lowest are the long stalk and heavy trained and I realized I had been elevating up to the top 4 fan leaves at too of sprouts. Seems to advance quicker and I notice new growth. Should I trim that away or leave them as bud sites
Supper cropping
'So i've either supper cropped every limb at least once ( some healing there first some there third ) each on recover so well I want to do them all. I had them all pruned so that pretty much there was the top cola and 4 fan leaves at top. Once SC the limbs went ham and I'm wondering if I should leave these or not picture #3. Final is pic #4. Pic doesn't do justice. It looks better then last time

I think your trying to over-care for your plant. I think most would agree that pruning in veg should be more limited because it stunts the plants.