So I didn't really find any information on why the typical tren extraction method was preferred to directly injecting the dissolved pellet. Some people mentioned the fact that the pellet was made up of methyl cellulose, but that's just a laxative and shouldn't negatively affect the body. Then there's the dye, which I really don't know how bad that could be for you, but it doesn't seem logical for it to be too harmful.
I did 100 mg of tren eod, along with about 150 mg of test prop. I would smash up 5 tren pellets in a straw, and put that directly into a syringe, which I filled with the test prop. I would shake it and let it sit until the tren was dissolved, and then inject that. It was somewhat more painful than just test prop, but not severely. My logic was that the BA in the test would disinfect the tren. There were no signs of any infections, but I may have just gotten lucky.
Aside from maybe not completely and properly disinfecting the steroid, is there any obvious reason not to do this? Will making a too-concentrated of an injectable weaken it in some way? I did have some interesting stomach issues after starting the tren, however, they quickly went away, and may have just been caused by diet changes.