My only hesitation on the far hash is the risk that it can either be picked up in the middle of the field due to the distance it travels, or that it won't go 10 yards due to the horizontal angle.
We use 6 to one side, put the ball in the middle and kick to the sideline aiming at about the 45, so 15 yards. Even then that angle can be difficult to keep the ball from veering back so it doesn't go 10.
Last weekend we kicked on-sides 3 times - one they fell on, one we had dead to rights but our gunner took a bad angle and it went out of bounds (he's supposed to go straight down the sideline, where he would have had the ball come right to him, but he bowed in a bit and the ball got by him), and we recovered one (it actually didn't go 10, but it hit one of their players). 2 out of 3 would have been nice.