Just curious....... wondering what the difference is between test iso and test prop. Do they have the same effect. I can't remember which post i read it on, so therefore i can't find it, but someone posted that they prefer test iso over test prop. This makes me think that they have the same effect. The person stated that he has less pip with test iso than with test prop and i do believe, if I'm not mistaken that you can brew it at a higher mg. I ask this cause I have some test iso left over from a sustanon brew and was going to make a batch. Thanks for any and all help.