Frontload is doing more for the first couple of weeks. Let's say your planning on 500mg a week of sust then the first couple of weeks u frontload with 750mg.
The prop is too low a dose to really kick in. Frontloading will help with this.
Ahhh... there's nothing like the feeling of injecting 500mg of sustanon in your ass. It's by far my favorite steroid. The injections have never hurt me but after listening to some people on here complain about injection pain, I'm starting to think that I have a tough ass.
It's not the prop that will hurt your ass but the level of BA and impurities in it. Some people have higher thresholds for pain than others. Ttokkyo Sust seems to be by far the one most people complain about but it may hurt very little to u. U'll never know until u try.