As long as you don't have a modded OS then you are welcome to the 2yr warrenty.

If it blows, send it to OS, and get a new one back. Something to consider. I've had 2 30vg's, and the guy I sold my 2nd 30vg to sent it to OS and he got a new 30vg back. I was at the 1 gallon mark with the first one (bought it used), OS replaced the first one so I got a new 30vg for free. Ran about 6 gallons through the 2nd 30vg before the bug for more power bit me again. Sold the 2nd 30vg for $100, guy sent it to OS, and got a brand spankin new 30vg back, $6 shipped.

$106 for a brand new $230 engine. Hard to beat that.

OS has a good warrenty. If you can deal with the possibility of an engine failure and waiting 2 weeks for a new one then the OS will be fine.