How long before supercropping new tops

Hi all. On my second grow and utilizing a scrog setup. The topping of my main stem (4th node) was a nice success and now I have the two new tops that are about 3-4 inches each long from the split and with about an inch of those new tops above the netting.

The new top stems look very healthy, but given they are only 3-4 inches each, is that to too young/small to start to start supercropping them or lightly working them to start forcing more horizontal growth under the net? Is there a general rule of thumb on how long to let new tops grow in length to not stress/ruin them by introducing bending/cropping. I just want to make sure I get to them early enough for the horizontal grow and stretch.

Soil grow with BioCanna nutes. Will be vegging for another 3-4 weeks before flip. Thanks all.

It is a weed they are durable , you won't harm them starting to train

Just ease them back under the net, don’t man-handle them! I found making myself a hook, out of covered plant wire, is a very handy tool. You can use the hook to grab the tops from underneath & pull them back under. As soon as they reach the next square, they are ready!

Perfect. Thanks guys.