Did not trade it, but extensively went through historical charts ( Nifty only) and my conclusion :
As with EOD crossovers there are whips, though number maybe less but whip sizes are BIGGER !
In December there were 4 signal on consecutive weeks giving Sell/Buy/Sell/Buy !
These could be avoided/minimised if we can apply my suggestion as in EOD to take a trade on opening of the next bar after Crossover bar with some filter. This surely delays the entry and entry levels are adverse to the original strategy advised by TWH !
But I find it comfortable.
One need to keep on Booking profits, but at what level is a dilemma !
Also thought of trading this weekly crossover in Options ! But in absence of Data could not move further !
And also, maybe some other EMA cross may give better results. One can try Karthik's EOD (3,10 cross with ADX)
Last and not the least : One needs SS guts to trade a weekly chart on any strategy !