You're going to get widely varying answers here. Nepenthes media will always be based upon your conditions, so the only way to know what works best will be to experiment. 100% LFS tends to be better in brighter light and drier conditions. Most easy-to-grow Nepenthes should be fine with it as long as you water judiciously, but the more exacting species need more drainage. For your purposes, you should be fine.