Title says it all.... i catch numbers. but what do i do to catch big fish?

Like you, just numbers no bigguns yet.

23.75" slot fish on Fork is my biggest on a classic light-line drop-shot.

I have caught Bass up to 7lbs. on a dropshot at Fork, using flukes and full size trick worms seem to help attract the bigger fish. Still many of the larger ones have bitten finesse type baits.

No

All the time! Several fish over 10 lbs. and my wife and I normally catch anywhere from 5-10 fish a year over 8 lbs. on it.

100% yes , a D-shot can catch big fish . 11.2lbs and 9lbs are my biggest with plenty of 5's and 6's . All my big ones have come using a 5" or 6" Senko , wacky style . Usually have a 12-16" leader .
Most of my bigger fish come around the weeds and less than 15 feet of water . When I first started throwing Dshot's ,it was deeper water and nose rigging a Robo worm , never got any big ones that way .

I'm unaware of any drop shot technique used to target big bass, other than fishing it where the big bass are. That's not meant to be snarky.

Additionally, I've caught big bass on drop shot in times and places where it made sense to catch a big bass on drop shot. Example, I'm personally not going to throw drop shot in the shallows in the spring. There are other more effective ways to catch big fish then. But take a sunny day in July or August when the bite is slow, fishing pressure is high, and the big fish are tired of seeing 10 inch power worms? They just might be tempted to take an easier and less threatening meal.

To be clear, I haven't caught any giants on drop shot (haven't caught many of those in general anyway), but I've caught plenty of 5 to 9 pound fish on drop shot. There are some lakes where I have more confidence in drop shot to catch a good sized fish than any other, but they tend to be lakes that a) have good sized fish to begin with, b) are pressured fisheries, and c) tend to have more off-shore structure (and cover) as opposed to lots of grass in the shallows.

I'm sure someone else will come along with more insight, but that's how I see it.

Caught 28 pounds in a individual tournament on a drop shot in February, big fish was around 9

caught an over a couple years ago on a drop shot. But it broke my rod. Could have had a problem from being stepped on.

did you hand line it in?

August 16th 2017 at Fork caught by Mark Watson 24.25" long and 9.92 lbs - came out of the blow hole

Caught a 9.11 last summer at PK.

I personally have never caught anything bigger than 7lbs.