skeedad....I'm guessing a number of 1 in 4 (or more)....but, it all is about the individual circumstances of each stock.....
The one major reason for a reverse split is raise the price of the stock (usually, IMO, to qualify for a particular exchange minimum trading price), so as long as FLIP is "over the counter", it is not required....
The reasons for failure of a RS are varied but usually because of shorting on the belief that history says the price will go down.
If the FTS debt were eliminated, there would be no downside to a RS, IMO, due to the major bottom in the stock at this time....