lol. People were kegeling and reverse kegeling into stretches way before DLD had even heard of PE :D
Sounds like your routine is doing what it should. So you just have to ask can it be better, and am I getting gains.
If you are getting good gains right now then stay with what you have. If not then maybe go for a more intense routine of longer hold V and inverted V-stretches preferably heating prior to and maybe during your routine, ignoring the simple stretches entirely.
If you feel you can still make good lig gains (maybe you have a high LOT) concentrate on the normal V-stretch and BTC stretches. otherwise go for some kind of inverted V-stretch like the A-stretch. Often with longer hold stretching routines it is useful to use an object in place of the second hand, just to make it easier and its imperative that you have a very good grip.
Only change your routine if its not working for you.