You don't need a pct with SARMS, unless your taking a huge amount of S4, SARMS are slow acting but give you positive , continuous results. SARMS in the S1 form at least , are able to be utilized over long term. i used a combo of S4/S1 for almost a year and had some very positive results with strength and weight drop. No sides but the yellow eye form S4 that faded each S4 cycle.
There are allot more threads over in the pro hormone section on SARMS then there btw..