Devoucoux Chiberta Lab and Chiberta O - Panel code help?

I’ve been trying to figure out what the below Devoucoux panel codes mean with no success; they definitely don’t make it easy to decipher. All of the below saddles are “arcade normale” with the 2PB billet positioning. I’m looking into them for my TB mare who has big shoulders and a pronounced, but not sharkfin, wither. I’ve had her in a Chiberta O and Chiberta Lab, and both offered her better wither clearance than we’re getting currently. My leg also felt very secure over fences in both, despite one being a seat size far too large for me and a flap that was too forward, so it’s piqued my interest. l’m also looking into the Stubben Zaria Optimum.

Chiberta Labs:
Saddle 1: D3D SB 4 0 3 -53 0

Saddle 2: D3D SB 4 -10 3 -103 0

Saddle 3: D3D SB 4+15 3+10

Chiberta O:
Saddle 4: D3D 4.0 3.0

My vague understanding is that SB means shaved panels near the shoulders to accommodate shoulders, and I know what the D3D is, but I’m totally lost on the rest. Any ideas?

I know when I had a rep out for a fitting the + meant like adding more clearance for the wither. Almost similar to adding a shim to a half pad. It went in “+5 increments”. He told me I’d want a + 10 for my mare. She’s also a TB and I’d describe her similar to yours - she’s got a relatively shark fin either but it’s not pronounced.

I sure did love the chiberta lab. Unfortunately out of my budget :(. I’m having my stuben rep out tomorrow to test ride the zaria monoflap…which is a bit more than half the price of the lab :slight_smile:

Interesting! Definitely good to know. I’m trying to avoid any made to measure in French saddles so I’d be looking used and saw a few decent deals (I also have to sell my current Antares…). I’m glad to hear the Stubben is more affordable! I hope your test ride goes well - I’m super curious about them!