Top-shot and wind-on leaders

[Garry2rs]

For the last couple of years I have been reading about top shot and loop-to-loop leaders utilizing hollow core braid.
These saltwater set-ups allow you to create a knotless leader connection using a needle to thread the leader material inside of the hollow core line. The leader is held in place by the weave of the braid closing over it like a Chinese finger trap.
In the past, needles for leaders of less than about 20 pound test either didn't exist or I just couldn't find them.
The other problem was that hollow core that would except a leader seemed to be a minimum of 60 pound test...a little too heavy for general casting, in my opinion.
This week I read about Power Pro's new Hollow Ace line. Someone on the west coast told me they have a needle that could put 12 to 15 pound fluoro inside this PP 40# test.
I ordered the components.
Now that I have committed, I am wondering if anyone out there is already doing this?
Garry2rs