[martalist]

I ended up making my own notation early on, for exactly the same reason.

Adding to the difficulty is that some native speakers will enthusiastically correct your tone by over emphasiszing and embellishing their words (with trailing tones, ah's and lah's, etc). There are some people that I simply can't learn words from because I can never pick the tone. Luckily after a while you can pick those people fairly quickly!