Hi folks, as I decide to venture into 4-stroke engines , I have done some research and find that 4C technology is not as matured as 2C yet. The major issues in 4C are backfiring and idling dead stick, as some have feedback to me in this forum. Is there any effort by the major manufacturers such as OS and Saito to address these issues ? How are current 4C users overcoming these issues ? Thanks for the info..........