I'm fishing brushpiles in 15-20ft depth.  Using 10 - 11 inch worms, 5/0 Gamakatsu sharp hooks, 5/16 Lake Fork tungsten screw-in weights.  I'll get a good solid hook set, get 'em half way in and they'll come off.  When I get the worm in, the worm/hook have not moved.  I rig them Texposed with the tip barely coming out of the worm.  I even caught one, got him in the boat, them he came off.  When I looked at the worm, the hook wasn't even through the worm.  I don't know how I landed him.  Of course, this doesn't have constantly but it does happen too often.  Is it the screw in weight?  I like using them to get into brush and grass.  Can anyone help?

Check hook tip?  Bent? dull?

Hook points are straight and sharp.  Can't figure it out.  Never had the problem with unpegged weight. I just like the way the screw-in works through the brush.

Have you tried to leave a little more slack in the worm when hooking it?  

Sounds like your not using a heavy enough rod. You might think you getting a good hook set but the drag of 20 feet of water and some stretch in all mono-filoment line and your probadly barley moving the bait. Also if your drag is not set tighter than normal you many be losing some power there too.

When you are setting the hook alot of your energy is lost on the rod tip,the stretch in the line and the water drag on the line. When you fishing that deep your line many appear to be straight but it has a "bow" in it as it goes to the bottom. By not using a heavy enough action rod you not getting enough power down to your bait.

What position is your rod at when you are setting the hook. If it's at like 1-2 o'clock and your setting your hook at 12o'clock your not pulling enough line.

Jdw  I have had the same problem with the screw in weights.  I believe that the weight either gets in the way or causes the plastic to ball up on the hook.  I have switched to a jighead with a 4/0 hook such as the spotsticker or shakey head.

Hookset, have you had more success with the jighead?

With the depth you are fishing their will be alot of slack even though you don't realize it, so I would recomend a low stretch line such as Power Pro braided line or Seaguar fluorocarbon.

I was having problems keeping them buttoned when I started getting back into bassin'.I had the right rod ,sharp hooks,etc. ,but I was still losing them on the way to the boat.I tried a low stretch line,and the problem was solved.

yes i have had more sucess with the jighead but I still lose a few.  When I am fishing that deep I am using 10 lb PLine premium on a spinning outfit, its not the stiffest line on the market by no means.

Change to a lighter wire hook. It takes less preasure to stick the fish and creates a smaller hole so its harder for the fish to throw it. Also change to a straight shank worm hook not the off set hooks. This hook gives you a better angle to stick the fish at a vertical position and don't use the screw in weight because the hook has a hard time sticking a fish with that much stretch. The distance between the hook and weight isn't much and if your weight is not breaking free from the worm its hard to stick the fish.

its definatly the screw in weights

Another thing it can be is once the fish bite and you set the hook, if he is biting down on the line or weight you won't move the hook enough to get a set. Then all they have to do is open their mouths and gone.