I have been doing inj. into quads. for years no problems. But I look at posts for these and vids. also. i have seen diff ways of doin these I am talkin about the outer quad. I have done into the outer most(side maybe a better wat to define ) and also the outside of the front quad the vids I have seen use both and call these both outer quad injections ??? which is correct or are both acceptable. I also use the innner or teardrop so which outer is correct and is there any dangers for the one that is not?