Yeah, same problem with the new gas giant skimming rules. As written, they make something that is supposed to be moderately routine quite difficult. Though in that case if you just define normal skimming to be the reasonably safe outer layer skim and make the deeper skimming be 'fast and reckless', then it's a good addition. Ordinarily, you slowly skim from the safe layer, but characters have the option to do more dangerous stuff to speed it up.