did the lower axillary growths start to pick up speed? if not, it was not topped in a way that cuased any redistribution of resources.
FIMing is just node mutilation in hopes it spreads auxin (growth hormone) and retains those snipped nodes at top enough to heal and grow. Just wait 1-2 more days and top it next itme - cut off same bit, but with slghtly more growth for an easy cut. Less time than the top node healing and re-growing.. no risk of missing it and not causing anything but cut leaves to grow :P