I'm using 750mgs of Prop/Mast P a week on my current cycle and injecting EOD.
So EOD I have to put 4ml of oil in my body.
I generally split it into 2, 2ml shots.
I can't put 2ml in a delt, calve, tri's, so I really can only rotate quads/glutes.
I have found, injecting nice and slow first, and getting in a really hot shower following, rubbing the injection area to spread out the oil works great.
I'm only rotating these 2 groups, and have been for 7 weeks now, and I'm never sore from the injection.