Nicotine storage has been somewhat of a hot topic lately, and as I've been evaluating my storage setup, one of the things I've been wanting to do is to finish topping off some amber bottles that aren't quite full of nicotine and have too much headspace for my liking. My question is: would there be a problem with mixing the same strength nicotine from different vendors? If I have a 8oz. bottle with 7oz. of MFS 100mg nic, can I add another oz. of River Supply or Heartland Vapes 100mg nic to it without causing any kind of weird damage to it or affecting the long term storage quality?