I'm thinking that you will find the paddling style that works best for you and then you'll find the paddle that fits that style. I would only caution you to not go at it too hard and strain something. My experience is that paddling can sneak up on you and cause some long lasting debilitating pain and suffering if you let your enthusiasm get ahead of you.
Everyone is going to have a different level of tolerance for the repetitive physical exertion that paddling is and it will most likely change as you go along. I think I've strained just about every part of my body in one way, or the other from paddling, but somehow I've survived it and unbelievably I think I'm better able to do distance paddling now than I was when I was much younger.
I've tried to teach myself to use what feels like a proper paddling technique (rotation, core and such), but there's always room for improvement. Most important for me is to constantly remind myself that moderation is key.
The style I use these days is mostly a lower angle, where I try to keep my pusher hand about shoulder height with my arms bent at about 90 degrees. I find it easy to maintain good rotation as long as I'm moving right along, but I kind of slip into a much sloppier mode when I'm just taking it easy.
I'm 6'-2" with fairly long arms and I've found that a 230 mm works well for all around paddling and good bracing ability in my sea kayaks. I've got ten paddles to choose from and they vary in length and style. I use different paddles depending on which boat I'm in.
I guess my main point is don't overdo it and learn what your body can tolerate.