Check the site injection poll I posted a coulpe days back. Last I saw - of the people who have actually tried site injections, over 85% believe that they work.
Prop does hurt, but it's nothing compared to 1.5cc Fina in the bis and tris.
when i first started inj delts i did this for about 12 weeks,damn they are fuckin huge.wether it will last or not dont know.i have since been doing bi,tri,thigh,and gona do a pec inj soon.