First, unfold in progressions of 5 waves. Three of those waves (1,3 and 5) are price movers, known as motive waves. The other two (2 and 4) are corrective waves. In this chart I observed a triangle (commonly known as a ) in the 4th wave correction. Suspecting that a 5th wave would follow, I waited for the trigger (a GREEN Heiken Ashi bar). Waves 1 and 2 are not within the window if this chart.
Heiken Ashi bars are range bars. Green bars indicate an upward range and red indicates a downward range. When you switch to Heiken Ashi, notice how nicely all the green and all the red bars group together. The basic approach is to use a bar color change as an entry trigger. When the bar changes color again, take your profits. Pretty simple. Check out my comments on the chart. I hope this helps :)
I have the same counting as you do. What I like here is that the corrective 4th wave is an abcde/triangle while the corrective wave 2 appears to be a zigzag. This fulfills the alternating rule of Elliott Wave giving us more confidence that what we are seeing now could be a 5th wave of a minor degree.
The idea of using Heiken Ashi as entry/exit point is clever; however, I like to use some other confirmation along with it. Specially when riding wave 3 and 5 I usually wait for tops breakthrough of wave 1 and 3 respectively.