I just put your DJRock v2.2. indicator on a 5-point Renko chart for NAS100 (i.e. 11700 -> 11705) with your suggested settings and then put the RSI (Period = 14) over the DJRock indicator.
I truly hope the recalculation is as small as you say it is, because so far I don't see a single losing trade. The smallest win is 5 points in ranging markets and yet this indicator setup allows you to squeeze all the juice out of a long-standing trend without a premature exit.
I hope I'm not getting too over-excited about this. Your findings could be a scalper's literal Holy Grail if they just spend the morning and afternoon buying and selling exactly when DJRock + RSI tell you to.
@chickensword, let me know if you decide to continue foward-testing this setup. If you do, could you possibly take some pictures that show to what degree recalculating occurs?