Don't buy the blasters. Buy the rack packs. I've purchased a total of 6 rack packs, and gotten 4 autographs... plus refractors and the purples. I bought a blaster today and didn't get a single parallel.
I've bought a ton of this stuff in retail. I had bought 3 rack packs... and gotten 3 autographs, including Trout and a Chris Johnson Patch/Auto Green. Bought a blaster and 3 rack packs today (Sands Auto, some good rookies) and am curious as to any ideas on how much a complete set might sell...
After buying some packs of series 1 and 2 from Vintage Stock and pulling a 1/1 Sketch card redemption, I decided to try my luck with 5 packs of the U&H. Will start shortly