I didn't answer
@Dividedsky question to Mike, waiting for his response, but since you've let the "cat out of the bag", I'll offer my opinion, based on overall impression.
I've grown at least 12 different GPS strains and the 1 strain, that was a complete waste of time, was Tomahawk.
Hicock Haze was MEH as well as Snake oil.
Jelly Pie, lucky 7's, Dreamcatcher, Garlix, Copper Chem and Deputy checked all the boxes.
My favorite for strength, has been the long discontinued Guard Dawg (Abusive Og x Tres Stardawg) crossed to Gu's Stardawg, followed by Copper Chem.
Jelly Pie is awesome just not as potent, but is everyone in my circles, favorite.
I still have at least a dozen more strains to try, in my Greenpoint bag, so my list is only partial.
Overall their quality is superb, IMHO. You are getting what you pay for, minus the S1 fiasco.
Its better than most, but not having tried every high end breeder or chucker, I cannot say it has the best.
I've grown better from other breeders, but they don't offer the same variety and availability that Greenpoint offers. They usually cost a bit more per seed pack as well.