After over ten seasons drop shotting, I'll refer back to the drop shot guru himself - RichZ. He advocates using only the Gamakatsu Split Shot/Drop Shot hook, size #2, for consistent hooking reliability. And after trying those (and many others), I'm still a fan of those hooks today. It's the point of the hook that is most important. As RichZ would say, It HAS to be a STRAIGHT point, not beaked or curved inward.
I've never done well with circle hooks on the drop shot, but I use them for a lot of other fishing presentations - especially wacky rigging Senkos. However, you are denying yourself the full potential of the circle hook design, if you get them with an off-set point. True circle hooks are "in-line" with the eye of the hook, not curbed or off-set. And you do not "set" the hook with this critical design; rather just start reeling. The hook sets itself.