Samson,
No assery involved, it"s a valid concern
Not sure about the temp in F but in C, if you stop collecting at around 84c, you'll end up with a light smooth rum, that would be pretty quick to mature to drinking grade. Collect to 90c and you get a heartier, heaver, richer rum, though it might take a bit longer to mature ,if you use a clean fermenting yeast 3-6 weeks should be enough for it to break down,.
Don"t be alarmed though, pre-aged rum ,if you collect in the higher ends, smells like a pretty strong kick in the mouth. Just give it a few weeks to age and you should be ok.
You can also use a full reflux to distill your rum, once again, simply collect to the higher temps. I haven"t tried this yet, but theoretically it has a couple of advantages. You end up with a higher ABV starting product, hence you have less of the contaminants you rather not be drinking ,some that will come through in a double distillation method,. The second is more prolonged contact with copper. Rum produces quite a bit of sulfur in its fermentation process and copper is a natural "sponge" for it.
Keep us posted as to how things progress.
Cheers