Iām much more of a noob for reseals, but here are some threads that either give you a close up of real sealed packs, or had a strong discussion about reseals:
www.elitefourum.com/t/are-these-resealed/21550/1
www.elitefourum.com/t/have-these-packs-been-resealed/20597/1
www.elitefourum.com/t/are-these-signs-of-a-resealed-booster-pack-need-help/20238/1
www.elitefourum.com/t/identifying-resealed-packs/19330/1
www.elitefourum.com/t/how-to-know-a-pack-isn-t-resealed/19119/1
www.elitefourum.com/t/have-these-packs-been-resealed/20597/1
www.elitefourum.com/t/opening-a-1st-edition-base-set-booster-pack/17951/1