more likely you'll see sharks in Mainit, black tips, white tips, nurse sharks and the occasional reef sharks. It's no guarantee but the probabilitiy is very high you'll see one of them.
Bahura is no exception, while doing a safety stop over open water, we saw 2 white tips lazily passed under our fins.
At Arthur's rock, we saw a solitary reef shark and two big dogtooth tuna.
I can say that I was always at the right place and at the right time, maybe just plain lucky. I would suggest you get up early, go and dive the "shark cave" before anybody else. Once the sharks are spooked they'll go someplace else where me and my buddies will be waiting for them. hehe
Dive safe Spoon