in general, sarms suppression is going to be quite minimal... you can see it more so with something stronger like lgd4033 and yk11 but still nothing even close to a steroid and not to an extent where i would see any necessity for a "test base" Andro products do not, in my view, constitute a test base in any way... Regardless, you can definitely use it with them if you want... s23 would require a full pct... it still does not mean you would require using test with it... you CAN use test with any sarm and see very strong results but that is entirely up to you on what you want to do ...