price is also a factor a YS DZ while a nice engine I'm sure....is pretty expensive.... I have three OS 140 RX and I love them, powerful and a good set-up at a fraction of the cost, and a lot less part to change don't the road. I had the YS 140 L before and still have a couple of YS, they are great but the cost of repair while not very high....around 100.00 us per shot....but the engine had to be send in ...that mean no engine for a while, I keep very few parts for my OS, and don't have to send them for a YS guru to work on them.

Now if YS want to send me three DZ for free.....I'm more then willing to pay for tax....

Powerful and simple set-up I say 2 strokes.

Daniel D.