Ok, so I have recently had some prop pain that has seriously crippled my right leg and since i knew nothing about how oils and preparing your gear had anything to do with how painful or painless it can be, i figured that i would share what i have learned. THIS IS ALL ABOUT NON-INFECTIOUS PAIN.

Reasons for Pain

1 - The short ester has higher melting point easily causing crystals
2 - The concentration of the gear.
3 - The solvents used.
4 - Injecting too quickly
5 - Virgin muscle.

There are two well maybe 3 different kind of pains that you may get from an injection.

1 - Within 24 hrs will most likely be a burning pain witch is usually caused by a high concentration of BA (Benzyl alcohol)
2 - If the pain is after about 24 hrs of injection then is is most likely from crystallization which what happens when all of the oils/solvents have been absorbed but the hormone has not, leaving crystals behind.
3 - Going to make this 2 in 1. Allergic and when you may not get the injection deep enough in the muscle to where it may interact with subcutaneous tissue which the oils may seriously may irritate. ( not going to talk on these two)

Concentration of Gear

Say it takes the body 24 hours to absorb 1mL of a certain oil/solvent blend, and 24 hours to absorb 50mg of Testosterone Propionate. If 50mg or less of testosterone propionate is in 1mL of that oil, this injection should be painless. On the other hand, if 100mg of testosterone propionate is in that same 1mL of solution, then after 24 hours the body will have absorbed 50mg and 1mL, leaving 50mg behind in the injection area, crystallized and painful. THIS IS WHAT HAS HAPPENED TO ME

This is also why water based suspensions can hurt the most, water is very easily absorbed in the body.

Another thing to add. If your muscle is new to the hormone, it will absorb the hormone very slowly, but absorb the oil/solvent very quickly. This will cause more crystallization and pain. As your muscles recognize the hormones, they will be absorbed more quickly, thus less pain. The deeper you inject into the center of a muscle group, the better.

Ok now how to prevent pain from happening.

1 - Cut your shots 50:50 with sterile oil (I have ordered some grape seed oil for this). If you want to use 50mg of Testosterone Propionate, and you have 100mg/mL Testosterone Propionate- pull 0.5mL of your test prop, and 0.5mL of sterile filtered oil to shoot 1mL of 50mg/mL Testosterone Propionate. (I have read many different opinions on the ratio to use but this one make more sense to me, comments welcome)
2 - Heat your gear. i recommend using a heating pad because it can be used to heat the injection site as well. (BE CAREFUL THOUGH TO NOT HEAT YOUR GEAR TOO MUCH BECAUSE YOU CAN BURN YOUR MUSCLE AND THAT WILL BE MORE PAIN THAN YOU WERE TRYING TO AVOID IN THE FIRST PLACE)
3 - Inject slowly.
4 - Exercise will increase blood flow and essentially help absorption.

Dealing with the agony!!!!

Do not Ice it!!! Cold will help the crystals fall out of solution/suspension.
Ibuprofen helped me a lot with swelling and pain.
Also being in a hot tub, or jacuzzi, or warm bubble bath will help melt the crystals down. Using a heating pad can also help A LOT especially if you heat the injection site up the night of the injection had zero pain the next day it was a miracle.

Ok well that's about it or at least all that i learned feel free to add on I did all of this so all the people out there like me that didn't know any of this stuff can learn and avoid being crippled like i was.