Highly recomend getting the Raptor 50 kit, is a better deal than the 30. With the 50 you get; a great muffler instead of a junky one that 90% of us throw away, great carbon blades instead of cheapo woodies (save for later though), you get driven tail so you can steer when doing autorotaions, you also get an all metal swashplate, and carbon frame brace.

The bigger engine will be easier to tune. More power means you can run richer and cooler and still have flyable power with fewer hassles and reduced risk of overheating (a common problem with the 30's)

most folks once they get the hang of it want more power, the 50 delivers, a lot of folks may graduate to the big 70's and 90's but they still fly the rappy 50, but the 30 gets left home. Pretty sure i will have a 50 in my trunk on saturday morning for a long long time. My 30 lasted 3 months, before getting upgraded.

The upgrade is OK, but it ends up costing more and you end up with less. I have 2 Rappy 50's one from a kit, one from an upgrade. the 50 kit cost about 100$ more than the 30 and came with all the goodies, the upgrade ended up costing more than 300$ and i still don't have the metal swash, carbon blades or carbon frame brace.