Is it really that risky? I'll run around my backhand and hit DTL any day over hitting my backhand DTL. IMHO - I don't feel it's any more Risky than hitting a standard DTL forehand. It's also a good option if you are hitting an inside-out forehand and the ball comes back to you cross-court while you opponenet is deep and wide in their backhand corner.
Well if you guys are describing this correctly and I am understanding it, this is a very risky shot and is not used often as Rickson pointed out.
The reason it is risky is you have to hit back across your body which takes good timing and control over your balance and weight transfer.
The other reason it is risky is it leaves a ton of court open which will backfire on you if you choose to use it and miscalculate the read from your opponent and his ability to get to the ball quicker then you can recover.
This shot is not used often in the pros because the pros are fast, they can read shots, they are well conditioned to cover court, they have more efficient footwork, etc...however, this is not to say they never use it or that it is not seen used in a match.
That is a shot that feels great but may not be the best shot for the point. You have to be careful when you choose to use the shot and aware of how it can backfire on you.
Most of the time it isnt so much DTL they are hitting, it is that they are hitting the ball straight whether it si along the line, or four feet from the line.