Unfortunately print runs have gone up significantly so it is much harder to hit colour. Expand the prospect auto checklist is one way but saturating the product with insert autos ensures there will be 2X, 3X, however many X base autos overall.
That format you describe was exactly what I got from a super Jumbo of 2018 Draft from Laytons funny enough. Purple pitcher auto, college bat refractor, and two base pitching autos and another college bat base auto. Thankfully it was a lot cheaper back then but it was a dirty box alright.
My best boxes of Draft were two boxes of 2016 Draft( 3 autos) which I got on sale from BO in Jan 2019. The players have not really panned out but at the time these were nice hits. All 6 autos were hitters. Dylan Carlson Gold wave/ 50, Jake Fraley Blue wave/150, Gavin Lux base. The second box were all base but it was Kirilloff who was a $100USD card back then as he was highly touted, Kyle Lewis, and Potts who was a dud. Also had a box topper in one box.
One of the few occasions where I made money from opening. The Carlson I sold 18 months later for $500USD, Kirilloff for $120~, Lux for $100( sold too early), Lewis $80( way too early), the Fraley for maybe $25 and Potts for $15. Then in 2021 all the chrome of Bo Bichette, Pete Alonso, etc. For a time that was an incredibly hot product. It's slumped now and I'm glad I did not hang onto all the cards. Sure I'd get more than $20AUD for a Bichette refractor but the Carlson has halved.
I paid $220 USD each for the boxes - a steal at the time.
Great memories actually. Love opening Bowman haha. No way could I ever sit on it. It would drive me mad.