by Doctor Hexagon » 15 Sep 2011 19:33
In my opinion what it essentially boils down to is personal preference.
I personally lean toward the hook. My style of picking is single pin at a time and I like the hook because A) I first learned to pick with a hook years ago and stuck with it, and B) a hook allows me to single out and target an individual pin stack and get tactile feedback specifically on it while I'm picking.
Now, you can do all the same things with a diamond pick though. In fact there are some things you can do with a diamond pick that you cannot easily do with a hook. As raimundo said, a diamond is great for wedging underneath a pin stack especially in very restrictive keyways. I often use a diamond pick or an S rake in this manner to get under a pin when my hook isn't able to.
An advantage to a hook is you can more easily manipulate a pin without disturbing any adjacent pins. This can be indispensable if you're picking a smaller lock or a lock with a heavily staggered code.
As you can see, there really are different advantages to both kinds of picks which is why I use both even though I will usually grab a hook first.
If a diamond pick feels right for you, then by all means keep on using it. The important factors are what you're most comfortable with, and of course what gets the lock open.