Ok, quick question, what is the longest time between finishing a moc and going back and adding to it? I understand that MOCs are never really finished, but how long does something have to fester before you grab the bricks and make that change? Do you have to consciously turn off the creative fountain and force yourself to call a MOC finished? After finishing up my rebuild of the Twirl and Hurl's front axle, I thought I was done... but then I realized while sitting there looking at it, I could add a sign that folds down when the ride opens and started envisioning it in my minds eye. Unfortunately I suddenly realize, this could be a sign AND a platform extension that makes the platform seem more complete since it fits the actual diameter of the ride's circular motion. Both sides added a total of 150 bricks to the model to add 6 panels of platform extension, 3 per side. The model didn't need the signs/extensions, yet I feel compelled to add them. Do you let the creativity flow or do you have to "make it stop" and cut it off? Or do you push the envelope and add just one more do-dad? I'm curious to hear from some of the master builders here.