I have the RB S3, its my first nitro engine. I really like this engine its great . Been using it for about a couple months now. The track I use it at is an indoor track which is small and technical which makes the S3 perfect for this track.

I’m saving up now for next year, summer racing season, for a new engine which will be used for outdoors here in the NW of Washington. I have my eye on either the S7 or the WS7T.