I decided to forgo the nitrates
You might as well as said "I am willing to risk the health and lives of my family and friends" that is unless you are going to eat the entire batch yourself then I guess your welcome to gamble with your life.
But what if you die before you eat the last piece and someone else eats it? Yea better to use the nitrates.
If you have eaten a big ass spinach salad or a bunch of celery all at once you have likely ingested an entire jerky batch worth of naturally occurring nitrates without realizing it.
Use the curing salt (nitrates) insure you are using the proper type. If you are unsure and unfamiliar with nitrate salt and that is why you wish to skip them it is a weak excuse. This forum and many other sources make it easy to get educated.
Here is some basic information,
http://ruhlman.com/2011/05/the-no-nitrites-added-hoax/Nitrates are what makes, the Ham, Hammy and the bacon into bacon but it also prevents the growth of botulism and that's pretty important.