RE: .30 or .50?
If BarracudaHockey did have quarter for every person that got a 30 and then wished that had went to a 50 initially....I would have been a contributer to that fund.
I've flown both....get the 50. I agree with Syclic in that the OS 37 with the right muffler will turn a 30 size machine into a screaming demon...but the larger size of the rotor disk of the 50 still makes it a more stable heli. I'm only familiar with the Raptors but for what I consider not too much more for the Titan over the 30 size Rappys...I'd get the Titan.