Wow experts- sd panel with gusset same as d panel?

[Llanali]

Hi all, wonder if you can help me. I'm
After some dwg panels with stitchline and no tab,

There's a saddle which is close to what I want which has apparently got sd panels with gusset an stitchline no tab.

I thought SD had no gusset? I wonder if someone has put the S in to denote standard gullet on a gussetted D panel?

Can anyone help me and tell me if they might be similar??

Many thanks.

 

[sbw]

SD panels have no gusset and won't suit most horses.

The air bags inside are different & if you put a D panel next to an SD you will also see the stitch lines are in different positions.

I'm also looking for some DWG's without tab, not proving easy to find!

 

[zoon]

I have some DXWGs without tabs I'd they're any good?