For me personally based on feedback from satisfied customers, I believe with my slightly upward bent banana I do my best work in the missionary position or her facing me riding me. The upward curve in the Doggie requires more re-positioning and me coming down at a different angles resulting in the occasional series of unwanted pussy farts which can be a turn off for some women.
Doggie and reverse cowgirl for me personally are highly inefficient positions based upon the characteristics of my operating system. Reverse cowgirl for me also results in frequent dangerous "slippage" incidents, in one case resulting an audible pop coming from the cock region. I have permanently banned this position from my menu since one near catastrophic incident which resulted in a broken dick string (a tear in my frenulum).
According to my female counterparts (wives, gfs and friends w/benefits) that I have coupled with and compared notes, guys that hook down do best at doggie and reverse cowgirl opposite positions I excel at. I have very few data points on dead straight angle cock from my counterparts other than in one instance where it looked bigger but but did not adequately max out capacity
Pretty sure my torn rotator cuff were as a result of being overly a mbitious and optimistic with standing positions and misjudging the dead lift requirement for a partner (even if she does only weigh 110 pounds) that while not caused by the cock specifications may have been attributable to compensating center of balance, weight, etc.