Whenever I saw someone say 'Watch out for this AAS its a real painful shot'
I always thought that they meant it was painful to inject and that it caused some kind of instant burning or sharp pain because of the solvents in the injection.
But having tried Sust and Prop the only pain I experienced was soreness at the site some hours after and no pain on injection. So are these guys talking about pain AT time of injection or the delayed onset of pain AFTER injection?
Personally I've found undiluted prop causes pronounced swelling and soreness at the site of injection 3-4hours after.