my advice is just a summary of what is said above.
you sound like you've been in the weightlifting game long enough; you should know that "patience and hard work" trumps "creativity." (not trying to be condescending in the least; everyone needs a reminder from time to time).
first of all, if the bar rolls off your shoulders, it's too heavy. drop the weight and do it right.
secondly, i would definitely look into doing more ab work. i highly suspect that your abs are too weak to keep the necessary posture. it's a different animal than the back squat. here is a chance to fix a weakness!
thirdly, stretch your wrists and shoulders. as has been said, keep your elbows up and in. literally, choke yourself out with the bar! for me, i focus on bringing my elbows up first when coming out of the hole.
as far as "creativity" goes, the only thing i would recommend is pausing down in the hole for a few seconds and focusing on keeping good posture. in my experience, if you are going to lose the bar, you are going to lose it in the hole, not up top. therefore, i don't recommend static holds up top.