My problem with Pryor is that his accuracy is so low that defenses don't have to respect his arm and were able to put 8 in the box to shut down the read option. I have the same problem when using Tebow. Could just be my horrible passing ability tho lol.
I've had the most success with the normal triple option in Carolina's pistol where the initial read is with HB#2. The only problem is that if a DE or OLB lines up past the Tackle on the weak side, then a give to HB#2 is a certain tackle for loss. The Triple Option Slip also works well if the defense does not adjust by shifting players to the playside.
Some other good running plays in the Carolina pistol is the HB Off-Tackle (which can set up the normal triple option) and the Stretch(which if you flip to running to the weak side allows HB#2 to get an insane seal on a LB).