i actually have clipped the top once, and didn't really want to start pruning it regularly for fear of stressing it out. But i had been thinking something needed to be done about the skunk's height, your advice just prompted me to finally do something about it.
as i've mentioned, i did LST the skunk (the first pic) in order to help with the height issue, and improve yields. So it's actually the side branches that are reaching up so high, one in particular (the second pic). What i decided to do was kind of LST that side branch also back along the length of the main stem, taking the height down and preventing it from blocking off most of the leaves of the other side branches. You can see top and side views of this in the 3rd and 4th pics. The final pic shows ho much this has reduced the height of the skunk compared to the last pic i posted of it inside the box, as you can see it's significantly further away form the lights after having that lone branch tied down.