This is my personal opinion, if I were to choose to take Creatine on a cut.
I would opt for Creatine Ethyl Ester: The known side effects that are "possible" with Creatine Mono are virtually eliminated while receiving the same benefits of Mono. I will not have to concern myself with water retention during my attempt at fat tissue loss and this will stave off any complications and confusion, and I can focus my attention in others areas of my diet and training that are important.
There is a biological necessity for water with Mono while with Ethyl Ester there is not.
To PREVENT misreading ONES BODY and forbid personal heartache: IMO one should be proactive in education prior to purchase of any supplement they plan on consuming.
I have seen many posts by people new to fitness and training on the forum. Some of these posts were from those that had freshly taken Creatine Mono a week before, and were disheartened that they gained weight when deficit dieting. The informed person would realize this is temporary water retention and not "really" tissue gain. Thus the importance of education BEFORE taking any supplement. With Ethyl Ester, one does not have this problem.
Mind you I am not saying one shouldnt take Mono, it is as good as Ethyl Ester, IMO. Just understand their are differences in side effects and understand the potential bodily feed back when taking them.
In other words, it is fine to take on a cut or a diet formulated for fat tissue loss when coupled with weight training.
Just understand what its purpose is and the "potential" it may present to you in your weight training.
Dont expect a "miracle worker" but it can prove to be a minor "coworker" in your fitness plans.
ROCK ON! AMP! Yes, ROCK ON!
Best to you Amp, as always my friend,
Chillen