INSPIRED FUN - SEARCH BELOW FOR YOUR SUBJECT — convection oven

So when I began my cookie business, I faithfully baked in my gas stovetop, conventional/convection oven.  In theory....well according to the internet, it's actually a really nice high end oven and will work as both a conventional and convection oven.  I whole heartedly disagree.  Maybe it is just my oven, but I have to say it really only operates properly as a conventional oven. Anyway....it worked really well for years baking my cookies and then one day all of my shapes started spreading.  It was baffling.  I had repairmen come out a few times.  Finally after months of frustrations, I...