If I do a grip job of any kind (ex. clear section to expose a cool top graphic) I will murder that board within 2-3 weeks, usually on a flatground pop shuv or something equally ridiculous.
On the other hand, the recipe for making a board last up to 2 months and never actually snap is treating the grip like a public bathroom stall, by offering any random jabroni I'm drinking with a white paint marker to draw something on it.