Two handed for me, most of the time. It is what I've done the most, so I'm better at it... and that is sometimes ok, other days frustrating....
Dan Kraus uses a side arm method to deliver the line a long way up there with great accuracy. I have never practiced it enuf to learn how he does it.
I have to make lots of long throws into conifers with many obstacles, and need to hit tiny targets, ie crotches at the trunk that dont grow upwards, very hard... so the BS comes out most of the time.
And, even with Zing-It, the pouch needs to weigh 16 oz to guarantee it coming down, lots of frictiony surfaces up there. It is hard to shoot over 90 feet with the 16 oz. I havent broken out the 1.75 mm Zing-It yet, that should help. Rarely need to shoot higher than 80 or so anyhow.