Agreed, multiple variable types and equations, some number crunching a standard benchmark type test... I can tell you this now, if you are working with a lot of objects C# will outperform and directly call a specific object a lot fast that iterating through blitz's objects haha. It just depends on what youre doing I suppose as to what is going to be faster... The SDK just gives you so many more possibilities, and between it and C# its a good starting point for moving into C++. Why not take the plunge?