I think I understand what you are asking:
You have a furler that specifies its maximum luff length as 44' 1". Your sail has a luff length of 44'. You are wondering if this narrow gap could contribute to the likelihood of halyard wrap. Do I have it right?
The answer is maybe/probably, but with a few unknown factors to qualify that response. The issue is much less about how close you are to the furler's max length, and more about the angle between your forestay and the halyard. I have read recommendations of anywhere from 10 - 20 degrees, that you want, but I have never found anything that clearly describes how that measurement is taken or any evidence that there is a magic angle. Suffice to say, you want some angle there.
If you already have a halyard restrainer, then you probably don't need to worry about it. My guess is that you do not, or you wouldn't have asked the question.
The other question is whether the furler has a halyard deflector (a little disk designed for this purpose). Again, you probably wouldn't have asked the question if it did. I will say that, if I were concerned about halyard wrap, in this instance, I would just add a halyard deflector.
