lgd 4033. cycle. length

Hi, I have been looking at LGD4033 and Ostarine. I am 22 and 5'9 with 160 lbs and 18% BF. I have been working from 3 years and have been using creatine and protein.. want to gain muscle while lose fat. mainly muscle gain. What cycle would you guys suggest? Also, do I need to have AI and natural...

Hi just wanting to know what the time between cycle is. Just finished 8 weeks lgd4033 and just finished 4 weeks pct. Does the rule time on = time off apply or is it just a couple of weeks or even straight away. Have read some mixed answers on this Thanks in advance.