Funny you mention that, I actually have a set waiting for the next time I get the urge for a string change on that bass.
5sg.
That is funny.
However before you open them, I suggest you get some 0000 steel wool, 90+% isopropyl alcohol, and some clean cloths/rags.
I have a set of D'Addario Half Rounds. When I got them, I just whipped them out of the package and put them on.
Big mistake! They felt tacky and sticky complete with machine oil residue and teeny tiny bits of metal from the grinding process. You couldn't see them but you could feel them. Just gross!
So I got the above and put some iso on a clean rag and cleaned them till they stopped making the rags dirty. Then I ran the 0000 steel wool several times along the length of each string which smoothed them out even more. This took almost 40 minutes iirc.
The result was astounding! Like a totally different set of strings now. Imo tonally, they're a very neutral string. The most neutral of all my strings. Now they feel nice and quite smooth.
A lot of half-round/groundwound users on here complain of "stickiness". I suggest giving this procedure a go.
Since then, I have yet to keep them on any one bass but they seem to give me direction of what string set a given bass needs. I almost kept them on my AmPro2 J but went with Pressurewounds instead for rock.
I've also wondered if Ernie Ball Slinky (cobalt) Flats users could give this a go as well as they often complain of same.
I have a set of Brite Flats on order. So looking forward to trying those out on my Stingray.