I ran an Airtronics 94361Z Rock Crusher (200 oz/.10 sec) in my SC10 after it served several of my other cars over several years. Was an excellent servo. Of course after several years it started to tire. A fan favorite seems to be the Savox 1258TG which has a lot of bang for the buck. I was going to get one of these but at the time they were out of stock practically everywhere. I ended up getting an Orion Vortex VDS-1409 (195 oz/.09 sec) which I also had my eye on. It's a killer servo and I'd recommend it to anyone. Very fast and more power than an SC10 will ever need.