Issues with my (vertically challenged) SCOG space --- decapitate vs. supercropping?

My 4x4 is only 4 ft tall. I had plants vegging for too long and cut off the tops when I put them in the flower chamber/scrog net, as soon as flipped.

What happened over the next 5-6 weeks, was that decapitated branches shot out new stems which were very stretchy and thin, and too close to the light. So much leaf too! Big mistake (perhaps)?!

Decapitating vs. Super cropping:

I think Super Cropping might have been preferable, in retrospect. It was not even on my mind since the plants were way too tall (I thought they would normalize over the fist 2 weeks of flowering). It was not really the case, apparently it seems....

Anyways the plants on the left grew big buds fast, whereas the plants on the right developed more vegatatively, with buds forming slowly/smaller/seems to be a week or 2 behind the ones on the left and more leafy.

I think the right 2 were much more effected from the decapitation.

I am trying to understand my mistakes here........ Pleas advise?

Thanks

Too short of vertical space
Too long of veg for limited vertical space
Not enough training to keep low
No knowledge of strain grown to know stretch in flower

Lots of issues at hand

It's funny because there was no stretch in my first run with organic soil. Now that I am doing soiless medium with hydro nutes they have stretched a lot in that, vegetative growth was off the chart as compared to organics. Not sure if that was a huge factor but it seems to be very noticeable to me.

your growing differant strains maybe? is your set up the same as your first grow or have you added more lights or anything?
as bob just said, you did not research the strain to see how much it would streach. and you let them veg too long