You will not find Turinabol for sale in any pharmacy in the United States since it is no longer manufactured by pharmaceutical companies. People often travel across the southern border into Mexico to find Turinabol, and some of these individuals actually remain in Mexico for the duration of their cycles since bringing controlled substances across the border is a felony. The only Turinabol available in the world today comes from underground laboratories that create their own tablets or injectable serums, but these are not regulated. There is no way to be certain of the dose, which could prove dangerous.
Hormones are esterified to slow their release into the bloodstream and prolong their duration of action by increasing their fat solubility. The esters used are just carbon chains of varying shapes and sizes, with a carboxyl group bound to and cleaved from the alcohol on the D ring of the parent steroid. Generally speaking: the larger the carbon chain, the more nonpolar/hydrophobic the compound meaning the depot will stick around longer and the ester will be cleaved at a slower rate by the body's esterase enzymes. So testosterone propionate, having a three carbon ester, will be released bound and metabolized more quickly than testosterone enanthate which has a seven carbon chain attached. In addition to altering the rate of release, the ester in use will alter the relative amount of hormone per weight of total compound. IIRC test prop is ~84% test by weight while test e is ~72% which I think is where you're getting your 15% number. But I'm not solid on those numbers. Anyway, so those are the two big ways that the ester used alters the curve and AUC of hormone release. That's good that you used the same dose location because injection site does play a role in the release as well, and I'm not trying to downplay your effort. but precise consistency between blood samples would take some serious doing. What I think you're overlooking though is that while each ester has an accepted window for when to get your blood drawn, these times aren't perfect and still won't always give equivalent values as far as where along the curve of hormone release your value lies. That was convoluted but I can't think of how to explain it any better.
So, as has been noted, Anavar is considered a fairly safe steroid, possessing qualities which commonly produce low side effects. The trade-off when it comes to Anavar is the muscle gain you’ll likely experience during and after the cycle. Gains will be limited and typically less than you’d expect to see from a Dianabol cycle . However, what you will notice is quality gains without subcutaneous fluid build-up which are much easier to keep once your post cycle therapy is complete. It’s fair to say Anavar would also be the safer choice for those who know they are prone to either androgenic or oestrogenic side effects.