First - the 2nd ring is not a compression ring. It's designed from the start to be an oil scraping ring. It does not hold pressure well as a result.
Now - There are two schools of thought on the 2nd ring & this will be a little odd simply because of the KY hyper special gap considerations:
One group like to use the same gap or smaller than the top ring. The 2nd ring does not get as hot because of it's placement and the oil that bathes it as it works. IMO - you can't go wrong that way. But, you may be giving up some power at higher rpms.
The second group, of which I am a member, is that the 2nd ring while not designed to hold pressure, does have some pressure built up between the first and 2nd rings in normal operation. When that pressure gets high enough, it can push the top ring up off the piston's ring land. When that happens, the top ring loses sealing ability and you get blowby and less power. A larger gap in the 2nd ring allows the top ring to do it's job better over a wider operating rpm. So the second group believes in running a larger ring gap on the 2nd ring. I use 25% as the multiplier. So an engine with a .016" top ring gap gets a .020" 2nd ring gap.
That being said - with KB's special top ring gap requirements - the 2nd ring should be gapped as if the top ring were gapped "normally". So where the "normal" top ring gap would be around .018, the 2nd ring gap should be around .023".
So if I were gapping your rings - the top would be .026", the 2nd would be .023.