It's ok to run the apron there, no grip issues.

The transitions are manageable, but if you do them wrong you can really hurt the car. I destroyed a ball joint and cracked an intake manifold fitting (the strut bar flexed and hit it) there.

It's not just the transition off the banking into 1 that is a problem though (it can be, but it is pretty manageable). There is a series of left/rights right before the entrance to the back straight that have brutal curbing, and the chicane on teh back straight is rough if you do it wrong as well.