Of course, the difference in angle is to compensate for the compliability of the leather and I don’t have anything but my pre-pubescent years of model airplane building (OMG! Would you believe sixty years ago?) to draw on as a reference. I’d try the 2 degree drop. Then, if it looks like the bevel isn’t polishing near the apex, I’d try the one-deg setting. Or something in between if it makes sense to you.
I’m pretty sure I’ve seen this discussed here before. Did you do a search?
OK, I did a quick search and found that LukasPop and Quodaddy99 both set back only 0.5 degrees for balsa. So there you go!
Here’s a link to “Stropping angles”
http://www.wickededgeusa.com/forum/9-basic-techniques-and-sharpening-strategies/12910-stropping-angles#16991