Originally Posted by
Simon Barden
TruOil is fine on its own, no need to add wax on top IMO. Never sure why people insist on adding wax on top of a perfectly good finish for no reason. It might make it a bit shinier if you haven't let the TruOil cure and then sand flat and polish up, but you can get TruOil very flat and glossy if you put in a bit of effort. And once it's cured, it is a very hard, durable finish.
The Briwax is a mixture of beeswax and carnauba wax. Beeswax is safe on all the guitar finished I know of and Carnauba wax is a common guitar polish wax. Carnauba wax on it's own can be used on necks if they feel tacky. So if you want to use it, then it certainly won't do any harm. But personally I can't see what it adds.