After a lot of problems with my new OS cspec viper head, I went through three new std. starters in two weeks, I ended up with a dynatron 24volt on a pair of 12volt 12mh batteries, these were off a powered wheel chair i got them new. £50 the starter was £69 but it starts all day and when i had problems with set up at the start the batteries never ran down.Now its run in I think a standard might start it but its so easy with the dynatron I dont think about going back to a little starter.
http://www.hobbypeople.net/gallery/578419.asp hope this helps