halfwit
I like turtles.
IRD here. NPP has a shorter ester. Measured aganist each other NPP is stronger than DECA on a mg per mg basis. The decanoate ester in DECA makes up more of the weight than does the prop ester for "NPP". For ex. ( just throwing #'s out ) 100mg of NPP might equal 90mg of Nandro vs 75mg of Nandro of DECA per Ml. Depending on the dose, Feq and duration the amt of aromatasition can be more drastic due to the long acting nature thus the higher level of active component in the blood. Conversely the NPP, being a shorter ester is "in and out" therefore the aromaticity is less. Which should lead to less estrogenic sides. But China Wall you are right. When the ester is "cleaved" the anabolic effect is identical.
Except that aromatization is caused by a spike, not steady-state values. The molecular weight is really not an issue at all considering we're talking hundreds of milligrams in blood concentration.
But then again, it's not the E2 sides I'd worry about when it comes to 19-nors either.

