Nope. The DOHC engine is just like the SOHC in that they are both 180 degree cranks. It may be due to weaker rings on my engine, or simply because I ride it hard. I solved the issue by venting the crankcase back into the carb inlets, just like the factory engineers wanted, and haven't been bothered by it since.
I had also made the mistake of gearing my bike lower when I was getting it ready to put on the road, based on what I'd read here. This resulted in the engine being "lugged" quite often, and requiring frequent downshifts to maintain speed on hills or to pass. I recently fixed that by installing a larger rear sprocket and couldn't be happier. By getting the revs up, the throttle response in every gear is greatly improved, and I rarely have to downshift. Now I cruise on the highway with the throttle barely open, and have lots available for passing. My top speed is "limited" to ~150kph (93 mph) as I'll hit the red line at that speed - not that I've verified this, the traffic on the highways around here average 120 kph (75 mph) which is comfortable for me.