Eastman Archtop Pickup replacement? (P90?)

[Fox09]

Hello everyone.

I have an Eastman AR803CE-16,

http://guitarsnjazz.com/product/eastman-ar803ce-16/

And was hoping to look at different pickups or at least what they have to offer.

My guitar has two stock Kent Armstrong pickups in it. They sound good, although I've never played archtops or humbuckers before so I am not so sure what another pickup could do.

I was considering a humbucker sized p90 for the neck. I am looking for clarity, and possibly a more acoustic sound.

If anyone has experience comparing P90 vs Humbucker on an eastman (or other) archtop, could you share? I

Thanks!