Probably not so much the issue of getting over ML at that height, more the descent into EN. I can't remember the height, but thought to transit it was min A065?
If the waypoint sheeds and some of the easterly STARs to 34 are in use you are doubly screwed.(Lizzy 5 victor I think?)
Your best bet for a CTA nav from there would be BLT AV YMPC YMNG and back. Make it high as possible.. Never been refused CTA clearance on the east side??
I'm sure there's other reasons I'm not aware of?