Hello from far far east europe. First take my apologise for my bad english but I hope you will understand what I want. I have big dilemma about 2 cycle OB oil. I have 2003 Mercury 200 hp carb and primary duty of my engine is 3months working with tourist for water attraction like tubing,ski and parachute. So engine stress is big. Here in my region all know is the best oil is Premium plus or premium quicksilver. I also used it and dont have any mechanical problems...but have smoke big smoke on first start. So can you give me advice about oils from your practice