My zuchinni's are doing great this year 2 plants and I have already harvested over a dozen. I was pulling a few and noticed a couple of 5" ones that looked yellow on the end for about 2 inches or so??? Whats that mean? One more thing- I tend to hold off harvesting until I'm ready but I cant keep up. Does letting them get 8 to 12 inches effect the taste? Is there a good way to store these guys so I could enjoy them during the winter? I do have a vacuume machine for food storage, could I just put them in a bag & suck the air out and stick them in the freezer? I know I'm full of questions but I have faith in all the very excellent gardners that seem to frequent this web site. Thanks for all your responces to my past posts too!