It is weird.
As I said earlier, it's not the measurements we would normally see with that combination. New crankshaft with HX bearings I would expect to see 0.003" clearance, not 0.0024"
As for rings, you should definitely consider a larger gap for the second ring.
I understand the manual says certain things and yes, the clearance of 0.0024" on these engines is perfectly fine. What I am getting at is that it's not consistent with what I'm used to seeing (and yes I have used many new cranks and blocks before)
There are still certain general rules that should be adhered to when building your engine. One of them is second ring gap should be larger than top ring gap