Jk...i use 20lb flouro to 10lb mon and 1oz weight...if u are breaking off, you arent setting the hook on fish imo. Try letting the fish swim off with the bait and just reel in the fish rather than having a hookset. If that works, your hookset is the issue.

I like 20 sunline main line, with 10-16lbs sunline leader. On the main line I use 1/2-1oz tungsten painted weight then a larger punching bobber spot to protect the knot. No beads no brass tickers. I use about a 2' leader between the swivel & 3/0 gamakatsu worm hook. Not wide gap or extra wide gap. I don't all the extras on my C-rig. I don't want to attract them to my sinker. Since I took that stuff out I don't feel I get sinker bites anymore. I drag my rig upward, not to the side. When I get bite I just reel and the hook with be stuck between their eye's 99% of the time.

BINGO.. The big weight is causing the hang ups, thus the break offs.

What knot are you using? You said it is breaking 1/4 inch below the knot. 1/4 inch below the knot isn't that far away and you could be creating a weak spot in the line when you cinch the knot down.

I Carolina rig a lot and have done so for many years now. My set up is a Dobyns 784 rod with 20# test Invizx main line with a 1oz lead weight, glass bead and swivel. I use either 15#test McCoys Mean green or 12# P-Line CXX as my leader line. I drag the rig with a sideways motion of the rod tip unless I am needing to bring the weight up and over timber and other cover or structure. I will ease it up over the object with the rod tip up. I set the hook with a sweeping motion. I have never had a leader breakage problem even when I used to use braid as a main line. The Dobyns 784 has a fairly soft tip because of it being a 4 power rod. The rod I used before the 784 was a 7ft 6in Kistler LTA that also has a soft tip action.

I would get rid of the braid and go with 20# fluorocarbon as a main line and try the San Diego Jam knot and see if that helps.
You also don't need two beads and a brass ticker. If you choose to use a tungsten weight and a bead, DO NOT use a glass bead, use a plastic one.

I had to switch from braid to 20lb fluoro as my main line due to breaking the fluoro leader on hookset. It wasn't necessarily breaking at the knot either. I thought it was defective fluoro leader but that was not the issue. I don't have any issues with 20 lb fluoro as my main line and 12 or 15lb. leader.

Braid has zero stretch, so if you're setting the hook too hard, your leader is going to be the weak point and will give. I would suggest 15-17lb mono with a 12-15lb fluoro leader. I'd also use a light wire hook because typically you catch those fish way away from you and you want to make sure you get good hook penetration. Leader length and weight will change depending on conditions and depth you're fishing.

Also, a sweep set with the strech in your mono main line will help ensure a good hookup

For me my rod is around 12o'clock and when I feel the bite is a crank on the handle then twist at the waist bringing the top to about 3o'clock. It's more of the speed in the twist than a typical jerk. The rod tip will travel a good distance so no need to reel down much. It will load your rod up on the sweep which should help your leader.

Like someone else asked, I'm wondering if you aren't causing a weak spot in the line when you are tying the knot.

1oz weight Carolina keeper 3 or 4 feet above hook, drag side ways.
Only one knot at hook.

If it's consistently real close to your knot like that then you're creating a weakness in your line when you're pulling down your knot. Be sure to wet your line good before pulling it down. Get spit on it. Flouro sliding against flouro will "burn" each other and cause a weak spot.

this ^^^^, if the Carolina Keeper is slipping, just add another...... no slippage. These are fantastic! Also, it allows me to use 1 line, no uni-knots or tying two lines together. Carolina Keepers are the deal!

I'm not a fan of the Carolina Keepers. Yes they have less knots involved, but they don't fix line twist. Not to mention it takes putting multiple keepers on you line to keep the sinker from sliding down when you cast them.

Im totally against a leader of any type tied on, so my biased opinion is get rid of it. Go all braid, or all mono/floro. A leader makes absolutely no sense whatsoever. Im gonna hear about the sensitivity and being able to "feel" the bite better, and so and so on. Why spool a reel up with braid and then tie on a three foot section to the end and think your fishing with braid, youre not. If youre tying on a smaller lb test to a larger lb test, your fishing with the smaller lb test, weakest link ring a bell? JMHO.

I don't use a smaller test lb leader but the reason for doing it is to make the weakest link. If you snag the lure the leader should break of before the main line thus you only lose the hook and not the entire set up