I think a lot of the lumps can be attributed to people forcing the oil into scar tissue. Not necessarily in S&D's case, but I've noticed over the years, people have posted about knotting up post injection.
As you walk through the possibilities.....new gear/carrier oil/type of solvent, size of needle used, muscle relaxed or tensed up, one common factor seems to be scar tissue. Some guys find an easy injection site and ride that thing like a stolen Schwinn.
I know it took me several months to get in position for glute injections. I would get the wife to verify I was in the correct quadrant, and while I supported the syringe, she slowly depressed the plunger.
There are 3 loves in my life: my wife, my English mastiffs, and my weightlifting....Man, my wife gets really pissed when I get the 3 confused...
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