I've always knit continental, and I actually HAVE to knit the way you're saying you're knitting, due to my Carpal tunnel. My fingertips get tingly and numb sometimes, so I can't always grab my needles and yarn to knit correctly. As long as the yarn gets around the needle, it's all good. :D
If it works for you, why change it? I'm managing pretty well, even when resting my needles(been working nonstop on DPN, which, actually, I enjoy alot!), and I can work in circulars just fine.
There are also times where my needles will be flying!
I guess it's just up to what suits you.