I’m in the exact opposite situation as you, I feel like I’m unable to bulk (even though I’m eating above maintenance) with Ramadan.
I’ve always used to be able to in the past, but something is not adding up right now.
Like don’t get me wrong, I look really good, I have a good amount of muscles, but I did lose 3kgs since the start of Ramadan, and my arms suffered the most (dropped a full inch), while also dropping some fat as well.
Now unless EF st3 is actually EF st2 and there was a problem with the naming, it doesn’t make sense, because I was also getting pretty good weight gain when I first used EF st3.
So in conclusion? Regardless of the stage we’re running, I don’t think testing EF during Ramadan is a good idea, no matter the stage (except maybe st1), mainly because the way the food timing is, it’s not working as intended (and no this is not bashing the sub, just observations).
I think Spartan might be a better fitness sub during Ramadan, as it would also help against the “slip ups” that come with the excuse “I’ll burn it off with my fasts and workouts”.