I kind of like the NS sticks, too, and they even make a 34" scale upright (that is 1/4 scale for DB) that is very interesting. I may get one some day, but I tune in fifths and have no idea what kind of strings I could get on it for that tuning.
I just purchased an NS Design Omni Bass, that’s the 34” scale product they make. Mine is a five-string. You can do your own string mixing and matching, but FYI, NS sells three string sets specifically for this instrument, and they claim the strings are designed for both pizz and arco playing.
The three sets are a low B bass set, a high C bass set (that’s what I play), and of interest to you, a high E cello set (CGDAE) in fifths (thank you Captain Obvious). The strings are manufactured by d’Addario. My understanding from the years of discussion on the megathread is that this instrument was originally called the “bass cello,” and thus they offer strings tuned in fifths and its compatible with their cello end pin.
Many pardons if you already know this in even more accurate detail than I’ve relayed. INAE by any means.
For the OP, this is definitely NOT the instrument you want if your real desire is to play double bass. The scale length is obviously wrong, and if you read various threads here, you’ll find experienced players articulating(heh) their discomfort with the way the neck is designed, it does not mimic the way a DB is shaped, so you’re probably not going to teach yourself the correct technique to cross over to a true DB.
I think of mine as a BG with upright ergonomics. It’s easy on my back, and my arthritis doesn’t complain as much with the entire left shoulder/arm/hand position playing an upright fingerboard.
I use a TC BodyRez to add some acoustic tone, but it’s still no Yamaha SB-300.