A “strike” conviction does not double the enhancement attached to the instant felony; the term for the enhancement is added after the term for the felony is doubled.
Penal Code section 186.22, subdivision (b)(5), establishing a parole eligibility date where the penalty for the instant offense is life, applies only if the felony provides for a life sentence, not where the enhancement on the felony results in an aggregate punishment of life in prison.
Penal Code section 246 is a felony subject to alternative penalty provision of Penal Code section 186.22, subdivision (b)(4)(B) of life in prison with a minimum term of 15 years of imprisonment before parole consideration. (People v. Jefferson (1999), 21 Cal.4th 86.)