By Allison Scarbrough. Contributing Editor. LUDINGTON — A 24-year-old Ravenna man serving a two to 15 year prison sentence for operating/maintaining a meth lab pleaded guilty in 51st Circuit Court Tuesday, Dec. 8, to methamphetamine possession. Donald Ray Picklesimer III, faces a term of one-and-a-half to 10 years in prison after pleading guilty as charged. In exchange for his plea,…