More secure, it probably didn't matter but I didn't want the spindle moving in my pocket. I opted for both the male xlr and 1/8 outputs the extra size doesn't matter much to me, about an inch. But I believe you can go smaller and opt for just 1/8. Thing is still so small.
Edit: you can get xlr only or xlr and 1/8 but not 1/8 only. It's actually the addition of the 1/8 out that extends the case. You can also get the xlr>1/8'cable from Jon, 15 bucks. Just ask him and he'll direct you to the right option.