i had the ghost pop thing, it's also called not having any pop, or lacking pop. or attempting to pop, but actually barely scraping.
you can overcome this by taping a brick to your kickfoot, to increase downforce on the pop. this, however, will make it harder to follow with that foot, but works out your ankles. you can try and balance things out by taping a brick to your other foot as well, or play around with left/right ratios for manuals.
you can also tape a brick under your ventures to keep your board from rolling, if rolling on your board concerns you.
if the skateboard is too long to put in your backpack, just take an axe and hack it in half. a good alternative to carrying your board with a backpack would be an urn, but you need to burn down your board to ashes first.