@kmac03 no starches do not become terpenes. Terpenes are actually produced by C02 respiration where carbon is stripped from the C02 and then recomcombined into hydrocarbons called isoprenes.
Starch stores are there to store sugars and nutrients for the plant to use to build and repair itself during the dark time. So the less dark time there is the more starches and nutrients get stored in the leaves.
Having a high brix content in cannabis can be a good thing as the sugars are used for energy for the plant to grow and produce a hefty harvest and they can even give the cannabis a better sweeter flavor. This, of course, is only if you survive the cure.
The higher the starch/sugar content in your plants when drying and curing the faster bacteria can breed because they have more food to eat. The same goes for certain species of mold and mildew. It also effects the rate at which chloroplasts and thylakoids break down. Sugars protect the chloroplasts and thylakoids and stabilize the membrane which makes it take much longer to break down chlorophyll.
So there are benefits to it if done right, but in my personal opinion the extra cure time and increased risk of mold/mildew/bacterial issues it isn’t worth it. Especially for the average home grower that doesn’t have the clean room that would be necessary to get a good dry and cure that would pass local/state microbe and contaminant tests.