On my last filter set, so next service, will re order. I have yet to use the half dozen or so stickers they give you. I had to belly ache some over their shipping costs. They tried to charge double shipping, so I cancelled order. The deal was for an oversize item and some smaller stuff. They tacked on the smaller stuff shipping as well, my point was that they could put the smaller stuff in with the oversized. Anyhow, I was peeved enough to cancel that $1000 order. There are 3 cummins trucks on my property that get my utmost attention constantly. I still need a locking cap set, I have the aluminum caps now.
Don't know the specifics, but sometimes smaller items can get damaged if packaged with larger heavy items.
But yea, Geno's has always been a little steep on S&H.