technically yes but you said you were using prop which means frequent injections.. that just won't fly long term.. if you do it on occasion you can get away with it but not daily injections no
the oil will form a clump and needs time to dissipate.
if you did TRT once a week you could get away with it, but with prop don't do it
I recommend backfilling a slin pin and if you do frequent injections with a small amount you can do it. I don't recommend anything over 0.5cc. I have a friend that does daily subq injections with Test Prop with no issues.
I’ve used a skin for Tren and Test. Trial and error showed me test knots less than Tren in equals amounts but I’m not sure why. Some of the knots will last a few weeks but go away in time.