Sam newb wrote: ...weed whacker line... It doesn't seem to tangle as easy as fishing line either !
Hey there Sam.
Let's see if you have left any questions unanswered here.
If you have tried to use fishing line while throwing by hand, then yes, I bet tangling has been a problem. Fishing line/reels are pretty common for very high anchor-setting tools (100 feet or more), like the BigShot or crossbows. Berkeley Fireline (a hybrid between braided fishing line and monofilament) seems to be preferred over monofilament, probably because it won't break immediately if it gets a tiny nick? Once "shooters" get the fishing line in place, they use the fishing line to pull throwline into the tree (ideally brightly-colored, so they can inspect the path, which can be hard to do with fishing line even with binoculars), then they use the throwline to haul up their climbing rope.
I am trying to imagine how weed whacker line would behave as it unspools during a throw. It certainly sounds cheap, although the best throwline for hand throws is a line which does not have a lot of spooling-memory, but does have some. Lines which are extremely relaxed tend to tangle more than you might think. I would imagine weed whacker line has extreme spooling memory, which might be annoying in the other direction. But, hey, the consequences from the ground are very low. If you fail to set a line in the tree, at least your feet are still on the ground.
Personally, I use sewn throwbag shot-pouches and braided plastic throwline. While it's true that climbers used to use anything that was handy, the modern sewn throwbags absorb impact when they hit a branch, which helps them fall straight down instead of bouncing around unpredictably in the canopy. You are doing a reasonable job of simulating this with nuts surrounded by a little foam and sewn into webbing. I like a weight that is just heavy enough to reliably bring my line back to me, and not much heavier. If I am going to re-throw over and over, I try to save my strength. The "ideal" weight depends on how rough the bark is, and how slick your throwline is.
Finally, and this is the most important thing I have to say on the matter... make sure to wear your helmet while throwing weights around. Also make sure that anyone near you is wearing a helmet, and say, "Throwing" before you give that final heave and let it go so that other climbers (or innocent bystanders who may have walked up unnoticed) know that something heavy is about to go flying, or can ask you to wait a second while they get out of the way.
Actually... I spoke too soon... the most important thing I have to say about climbing is that if you look up at the top menu of this page, you'll see an "Education" drop-down menu. There are many excellent instructors all over the country and the world. And while nothing beats in-person education, TCI even offers an online class which is a fraction of the price of a full set of climbing gear, and a tiny fraction of the price and hassle of a trip to the emergency room.
Sincerely,
-Dennis