personally i dont top. I just let my branches get to the desired height, then i bend them over and tie them down.

It looks like your plants were just topped. Fimming(if done correctly) sprouts 3 or more tops.

Bending is a really low stress way to keep your plants short. Its also a great way to create more tops without actually cutting anything off your plant. Topping and Fimming stresses the plant tremendously and it can take weeks for growth to pick back up again.