IMV... any kind of "cycle" analysis is among the least reliable.
Years ago when Steve Shellins ran the MoniResearch Newsletter, he commented... "those who claim cycle analysis as their primary methodology are the worst performers". (His service tracked ~225 money managers.) Which performers were the best? Those who claimed "Relative Strength and Sector Rotation" to be their methodology.
I'm to the point that as soon as somebody mentions "cycles", I tune out.... 'cause I know they are fishin' in a dry hole.