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Those look great. And it is wonderful that this site allows us to create patterns we like, customized to our bodies (or the bodies of our victims lol), and we can customize the pattern, fabrics, notions, etc.
I made my first Uma the other day, too. I was a little confused at first because it seems like the default pattern has no bulge at all. Is that what you experienced? I was a little unclear with all the options, so I think I just added a bulge-angle or something like that.
Edit: No, wait, never mind. I made Umbra.
This is the case for both Uma and Umbra. The design are similar, Umbra is based on Uma.
Both designs don’t add a bulge by default, partially because about half the population doesn’t need it and partially because while the other half might benefit from it, we still don’t know their preferred bulge size.
OK, I see Umbra is an improved version of Uma. I thought Uma/Umbra was more like a Brian/Breanna or Simon/Simone difference, but it’s not. So the lack of a bulge default makes sense. Thanks
I wouldn’t say improved. Umbra is a different style in that it doesn’t have the crotch gusset (at least currently, see #513 - WIP: Umbra gusset lining - freesewing/freesewing - Codeberg.org) and it’s indeed constructed more like typical men’s underwear.
Maybe adding the bulge by default makes sense for that reason. Not sure. Technically you don’t need the bulge if the fabric is stretchy enough and you don’t have a huge member anyway.
This conversation is very educational. I’m fairly new in my sewing journey, and I didn’t realize men’s & women’s underwear were constructed differently. I clicked on your link and peeked at the source code for the first time (I was a programmer in a former life, but never did JS), so I’m getting a better idea of how this all works.
Technically you don’t need the bulge if the fabric is stretchy enough
You see, I’m a weirdo in that synthetic fibers irritate my skin & can give me a rash. Part of the reason I took up sewing is because of all the elastane/Lycra, polyester, nylon, etc. in clothing nowadays. So I liked Umbra because it talks about the low stretch in the fabric it assumes by default, which I actually embrace. I made my first pair of Umbra with old 100% cotton jersey T-shirts, upcycling them.
I used an elastic waistband, for my first test pair, but my goal is to have a cotton tie in the waistband. I made a pair of Bruce, too, which may suit the cotton tie a little better. I’m really just experimenting with old fabric & new patterns to see what works at this point. I’m having a lot of fun, and discussions here have really been educational.
you don’t have a huge member anyway
I’ll try not to take that personally 
Seriously, though, thanks for your patience with a noob.