Dude .. i have read in some of the post that despite having a 10.5 inch cock DLD has a high erection angle .. so wouldn't that contradict your point??
but thankfully i got the angle .. and that is to strenghten your erector muscles .. basically by getting a HARD on .. and placing a wet washcloth on your dick and kegelling and slowly increasing the resistance. My current angle is at 2 o clock or 10 o clock what ever sides you consider