That is what I am thinking...less
flower material= more juice to the other parts of the plant. It sure looks like the juice is going right into production in my case. When removing the little
flower/bulb on top you need to make sure you don't damage the very tip/bottom end of the squash or it will turn brown,at times a few will die too but that is always the case even if you just left it alone.
Just like you.. if I don't get all the plants that I need early the "late plants" if any don't do as well as the first. It may be the weather or the temp. so you're not alone on that one.
Half of my crop still going very strong, some plants I removed when they got sick to the moth/white grub (was away for a week at a critical period in this bugs cycle) Try removing some of the small
flowers as soon as you see them and let me know if you notice a change in production also.