Man.... I am just stoked that a guy like me garners enough interest by people to get 8 pages of back and forth. I only read through 4 pages but I think I got the gist so I will answer below and satisfy some and not others.
1) Tris were a go to inject site very early in my training. Never gave me any issues until the 2013 USA's when I took a bad shot of winny as listed in the posts. Arm blew up.... skin actually started peeling off like a scab from the inside out. Even got really dark. Since then my left try has a literal point on it... soooo noticeable. Have done deep tissue, massage gun etc.... still there
2) I still hit tris from time to time but just as a place to put shots not to enhance an already dominant muscle. Truth be told I hit my delts most often because that is where I could use some scar tissue
3) The point of can he not admit taking SEO for sponsorship reasons? Silly... this is bodybuilding... nobody cares what you do as long as you look better. I have avoided actual SEO because I have found two things when digging deep into SEO's.... health problems and muscle tears. Why did I dig in enough to know that? Because I was absolutely considering using SEO for my weak ass bi's and quad sweep.
4) Why have I not used normal gear in my quads and bis? Quads hurt like a bitch.... sucks because so many people hit them and I feel it looks awesome. Bis... I had enough inflammation and pain using regular gear in there that it was ruining my training and lets be clear... I am not a champion pro bodybuilder. I love to train and I am not trading in my ability to train my face off for bis that are better even if they would look a lot better.
5) SEO is something a lot of people do and I have no issue with it. Why would SEO be "cheating" and gear not? That is dumb. I just avoid things that lead down a road that appears to only be health problems. We do enough things that we know are not good for our health without going straight into something that we know will end badly.
I am fortunate because I don't make decisions with my physique based on the judging of bodybuilding. I build the best physique I can within my criteria because I will not ever be a top pro. My tris are freaky... the left one is freaky and messed up...
Moral of the story is nothing is cheating in bodybuilding so if SEO's will help you and you aren't worried about injuries or health issues I say go for it. My tris have been hit many times but you are welcome to feel me up anytime and see them in person flexed.... it's not SEO... it is they are strong AF and yes... I have pinned them many times but not as much as my delts. And finally... really wish I could hit my bis and quads so I could at least have some semblance of balance but hey... freaky is freaky and it still pays the bills and then some. Hope this helps