A sure sign of strength is when a stock moves from Weakening back to Leading without rotating to Lagging - basically it rotates on the right side of the RRG chart without the RS Ratio crossing below 100.
We can scan (and test) for when that happens using the following formula:
//When RS Ratio > 100 ie on right side of RRG for at least 2 datapoints
JDKRS().Ratio > 100 and JDKRS().Ratio[1] >100 and
//and RS Momentum crosses above 100 ie moves from Weakening to Leading
JDKRS().Momentum CrossesAbove 100
Scan results: