As far as I understand the devil is (as ever) in the details, i.e. what kind of connection is there between the hand and the dantien and what other body connections come into play?
Oh well, small chance we'll ever figure it out without doing a show-and-tell, but just wanted to throw in my 2 cents.
Show and tell *your* abilities and then discuss how you train crossing hands with the real experts. I did. I have a connected body, and I taught others how to as well.
All I keep reading in posts and blogs is equal to the baby side of the pool, and even that is missing so much critical information that one wonders why anyone even bothered. I have yet to feel anyone with power from.....reading.