The basics between Todd's and TradeGuider's courses are the same. I completely agree with Todd that it's much better to learn VSA with candles than with close-bars. It's a lot more visual, and together with Nison's courses, when you see a candle pattern, you just take a look at the volume to detect a confirming VSA pattern.
Up to now, Todd's courses are too basic, especially when you have followed the TradeGuider courses. Hopefully the upcoming course has a lot more to offer.
I also think that Todd has a different (more aggressive) trading approach. e.g. Like me, he would trade a hammer in a downturn with stopping volume, and put his stop at the low of the candle. If the stop is taken out by a failed test, he would take a short at that point. I haven't seen TradeGuider people do that.
Here is Tom Williams Newsletter 4th December 2010 ...
http://www.vsaclub.com/m90_uploads/2010/dec/04/1735dbfb-893a-45de-818a-0dddc5e8e70f/1735dbfb-893a-45de-818a-0dddc5e8e70f.pdf