Ronnie was natural back then as an amateur. as he was trying to make the team universe ifbb worlds which basically means you are beating a drug test. They are all still using but it was usually lower doses etc, from memory he was around this amateur level for a good few years, after turning pro like other guys from the IFBB drug tested worlds he grew enormously without having to consider beating drug tests. This was before the guys were mega dosing Test and HGH like they were later on in the IFBB. Back in his day they were still using anabolic mainly fast acting stuff to clear their systems. Priest was another guy from that era, drug tested he was an under 70 kilo guy few years later a 92kg pro. Ronnie similar light heavy to 260 over the next 5 to 10 years. But natural in the ifbb means beating the drug test.
