I don’t think it matters about the string.

But I would wrap the serving so that as the fingers come off it, they are pulling to tighten it.

When I serve a bow for me (rh)  I lay the bow with the top limb to my left and I wrap the serving from bottom to top going clockwise (viewed from the top limb looking into the end of the string)

I’ve done a couple lefty’s and when I do those bows, I just flip the bow over so that the bottom limb is to my left and I serve from top to bottom.

That way, I don’t have to change my routine.  I’ve had no complaints (‘cept from my wife and kids).

Those are two aspects of strings I’ve never thought about! I’ll have start paying attention which direction I serve my strings and if they unravel or not.

Hi..I’m new on this forum, but, being a lefty I always wrapped my seving as explained above.  I’ve found out the hard way.