My takeaway from the tour is I need to feed the plant more. I have been doing about half the potassium that the grower with the pumpkin doing 60lbs per day has been doing. I've always struggled with how much to feed the plants. My new strategy is the eyeball test. Spoon feed them high amounts until something seems a little off and then start backing off. I know a lot of growers who do testing of the fertilizer solution until it gets tot he right PPM. That isn't a bad strategy, but with the eyeball test you can take the plant right up to the edge of what it can optimally handle and then leave it there. You don't necessarily get that with PPM testing.