The .117 KO slugs in 13.43grain seem to sell out much faster than the 10.34 grain,,,,,,, in my Maverick i have not been able to tame the light ones, but granted i have not given it much effort.
The heavy ones on the other hand are almost a drop in for the tune i have right now shooting the beasts well, so much so i feel there is hope for these once i get to dial more for them
Mundilar in Portugal which ( i assume ) ordered equal amounts of the light and heavy KO slugs, well the heavy ones sold out long ago the lighter ones are still for sale.
I would take a look at sales / shooter experience, and maybe scrap the lighter ones in favor of a 15 - 16 grain slug, leaving the 13.43 as the light ones.
So much to choose from in regard to slugs in the .22 caliber ( other brands ), i hope that come to .117 soon.