Just because you get welts or a reaction does not mean the GH is bunk.
It has nothing to do with it.
I have experimented with various protocols, 10iu EOD, 5iu daily, 2.5iu 2-4x daily, and none of it seemed to make a difference.
I am currently running it at 2.5iu spread throughout the day with GHRP 10 minutes before the shot.
I prefer IM shots.