1 hr or 2 hr – Confused!!

Ok now you guys have really confused me! I was happy to play along and record 2hrPP but after reading the post about peaking at 1 hr etc .. I am a little confused?
As a new T2 – when is the best time to check? Also I thought it was Ok to have a surge /spike after eating but that it should go back down within 2hrs ( is that correct) Isn’t that why we test at 2hrs or have I got this thing all wrong? Need to know what the proper "procedures" are for checking our bs.

Thanks:D