In my little test this Sunday I used two different weights and my slingshot (by EZ Hang).
When I started looking for ways to get a wire up a tree I tried various objects and lines. I found out quickly that it is important that the wire is smooth - so fishing line or decoration line (used in shop windows for example) is the way to go.
|Decoration and fishing line|
As to the object to throw you need something that is easy to handle, smooth / round (so it glides through the branches) and a convenient throwing weight. Regarding the weight you are looking for a sweet spot: heavier and it will get difficult to throw high, lighter and the object will not return your line back to earth but just keep on dangling somewhere high up in the tree. In that situation you are left with tugging the line hoping the object continues its descent but in my experience you might just as well cause the object to swing around the nearest branch - leaving it behind for eternity.
I started out with a ball as throwing object. Trying different types I settled on a field hockey ball. The reason being that it fits my hand perfectly and the weight is around the sweet spot (150gr) - not too heavy but generally enough to bring the line back down. Just drill a hole through the middle and away you go.
The ball is kind of large though so not so practical to carry around. Later on I started using fishing sinkers, settling on the heaviest one I could find (90gr).
|Throwing weights: hockey ball and fishing sinker|
I tried both and measured the height I could get a line up. Of course it is slightly unscientific as I used only one tree in this experiment - so not all heights were achievable only specific branch heights. It turns out I can throw the fishing weight just a bit higher than the ball. A few tries brought it up to 12 meters / 40 feet. A decent height for a wire antenna on the higher bands.
|EZ Hang slingshot|
Then I turned to my slingshot. I have been struggling with it in the past, getting the line stuck in the reel or not having the ball come down from the tree (losing a lot of line).
After a few tries I did manage to shoot the provided metal ball a nice way up and through the tree reaching a height of 25m. I think I can shoot it higher than that if I give it a bit more practice. That is a good height even for wire antennas on the lower bands.
|The EZ hang standard weight - a 25gr canon ball|
The main weakness to me is that the weight of the standard ball is too low to be sure it comes down from a tree with a lot of branches (let alone leaves). So the next thing I will do is test this out with a few different weights. I also have to replace the line as it has become too short after losing parts of it in the past (stuck in trees).
Will share more experiences in the future.