When a pollack takes the bait, there is little subtlety. It will hit it and hit it hard, usually hooking itself in the process. If it does not hook itself KEEP WINDING! Stopping is not something that an injured prey would do - it would keep trying to escape - so stopping alerts the pollack to the fact that something is wrong and, at that point, it will leave and not come back.
If you keep winding, there is a good chance that the pollack will return and take the bait again, perhaps even more aggressively than it did the first time. For this reason it is important that you use a light rod which will give to the fish's lunge, not too much, just enough to cushion that first contact and put you in control of the resulting fight.
If you are using braid, which is an excellent material for feeling exactly what is going on down below, you will also need to put on a 24 foot length of 20 lbs breaking strain clear nylon to act as a shock absorber. Even with the lighter rod, non-stretch braid on its own will tear the hook free so this nylon tippet is your lifeline to the fish below. It will also be useful if the fish decides to take the line under the boat, where rubbing on the keel would destroy the braid very quickly.
Inshore Boat - P.2
Once you start winding up from the bottom, experiment with rates of retrieve until you start to encounter fish. I tend to use very slow for worms, slightly faster for prawns and faster still for sandeels. Get it right and you will have a great day's fishing, well worth having a go at!
When you hook a pollack, have a good look at the deep set body and the protruding lower jaw. Both of these features are typical of an ambush predator used to sudden dashes of speed rather than sustained high pursuit. This is why reefs and pinnacles, both offering excellent places to hide, often hold good stocks of pollack between May and October (-ish).
The size of the pollack you will catch will depend on where you live so do a little homework first. Down my way, the majority of the pollack caught close inshore are under four pounds in weight so I get away with using light baitcasters. In other parts of the country I might have to step up a bit heavier. So might you!