Migara
International Coach
Kaushal's doosra's were 50:50. It cleared a misconception that "a doosra cannot be bowled legally". Here he was doin it 50% of the times in extreme of his deliveries.There have been instances lately where dodgy looking bowlers (T Kaushal comes to mind) whose stock delivery looked pretty sus but it got through the testing, however the doosra/other variation was consistently above the flex limit. Hard to imagine a clean looking action would breach 15 degrees, and from my reading of this subject a few years ago and as others have pointed out the 15 degree limit was specifically set to encompass anyone with a clean looking action
The problem here is the subjective selection happens just looking at the name of the bowler and going through footage to select deliveries to reproduce. To minimize the bias, every ball of every bowler has to be examined and suspect looking ones has to be tested. Still this has bias. While keepin the current system of testing reported ones, random testing of non reported ones should be performed as a quality assurance of the test.
However I find many don't want this. The reasons are unclear for a move that has a sound scientific basis.