yes for H2 the context you need a strong trend. this context gives the highest probability trade. you can even enter on H1 if the trend is really strong...... do not forget the purpose of all this which is to find a way to enter a trend. entering a pull back enables risk management. you could just enter on a close of a bar and put your stop beyond the swing extreme so there is nothing special about H1 H2 OR H3......it is means of estimating the end of the pull back.......it is not a secret method to enter a trend.
let me explain the principle or logic behind this bar counting by an actual open live trade see chart you have a down move which was interrupted by a pull back which was quite long so it could even be called a range. So what does this tell you.....it tells you that the down move was NOT strong so the next buy signal should be bought and that is exactly what i did:long usdjpy. it does not matter whether that buy signal was H1 H2 H3 in the same chart you will find many H1 H2 AND THERE WAS a L2 at the ma which would have worked out well so always wait for a trend line break
here are few more examples......always wait for a trend line break.......unless the trend is very strong hope they make sense
not always here are 2 examples where L1 H1 a very strong trend would have worked out fine.... once you get the principle behind it all it is quite simple..... powerful
UPDATE SHIFTED STOP TO break even considering all the big bull bars decided to hold maybe for test of high
see chart these are technically L2s..... but they are not very good L2s because the down bars are small and the context extremely bullish. so there is a bit of discretion to be used with this along with a good dose of market common sense! i hope all these explanations may help you use this simple but powerful method
it did not follow through and reversed so leading to a failed L2 or a H2. the range that was formed on the 5 minute would be just a bar or two on a longer time frame chart like 30m or hourly and so would be classified as a pull back. so the move up was a likely longer time frame H2