I am new to this forum but, have been making my own e juices for three months now. I have purchased mostly TFA/TPA concentrates. I have found that 80% of my fruit flavors taste like rotten, fermented fruit...even at very low or very high percentages. Also, a lot of the flavors seem to lose their flavor the longer they steep. I have been lurking around reading a ton of other people's advice, blogs and recipes. I've notice a lot of people use CAP, FA and LA flavorings. I have also come across some negative buzz about TFA/TPA.....so what I am interested in learning is what flavor companies do you like and why....also, if you have found the same problems/other problems with TFA/TPA? Thanks so much for your opinions/ advice.