I had the same problem with Hoffman bali strips a year ago, some were 2.5 some were 2.25 and a few 2 l/8th ..all in the same roll of strips! And of course, I sewed all the strips and started to cut and sew four patches....big mistake.
Then I found that I couldn't finish the quilt since I had cut the two patch/four patch squares....I contacted Hoffman.
They not only sent me more jelly rolls that were perfect, they sent me fabric for my backing 8.4 yards of their beautiful batiks....they also informed me that they no longer use "hand cut"..even though it was electric cutters, it was the person cutting.... Hoffman now uses only laser cutting of the precuts. With that said, it ruined my quilt vacation since I didn't have the fabric to continue my piecing and I was out of town where there are no quilt shops.
What a disappointment all the way around. I ignore precut specials...and wonder if they are discounted because they are the hand cut rather than laser cut.