Firstly do you know how/why are you are deep hooking fish. What species, size of hook and tactics?
You could try these http://www.maggotdrowning.com/forums/threads/4935
The write ups are brilliant. However I bought the coarse one but haven't got to grips with how to use it properly yet. Thing is if you deep hook a 5 oz chub with a size 6 hook, then the hook needs to be removed gently and with care and this thing is a bit drastic for that!! I had similar trouble with small pollack too.
I'm sure it's OK, but apart from the way it turns the hook backwards in the fishes throat which will harm a smaller specimen, I actually snapped some hooks with it too.