I’ve no experience with an sp01, but I had a 75 pre b once upon a time that wasn’t overly finicky. I don’t remember any failures with any ball ammo, never tried SD ammo.
I have a p07 that has taken everything I’ve given it, from my softball 9mm load (3.4 gns of 700x under a 124 gen cast bullet), to my SD ammo replication ammo (near max load of hs6), to WWB and Winchester ranger duty ammo. No malfunctions, none, in about 3k rounds.
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