Top-anchor idea

[MikePowers321]

So then you can ascend SRT on the basal tie, use Ddrt on your tail of your line to advance higher while slacking out your Srt line. When you get to desired tie in point, set the midline attachable friction saver, clip in Srt end of line, make alpine butterfly but up against oval swivel link to create canopy anchor. If you set it up right, the basal anchor can be set up as almost a safety on a structurally compromised canopy anchor. If it tore out in a shock load, your still on a basal tie and could be caught by a branch.

 

[oceans]

So then you can ascend SRT on the basal tie, use Ddrt on your tail of your line to advance higher while slacking out your Srt line. When you get to desired tie in point, set the midline attachable friction saver, clip in Srt end of line, make alpine butterfly but up against oval swivel link to create canopy anchor. If you set it up right, the basal anchor can be set up as almost a safety on a structurally compromised canopy anchor. If it tore out in a shock load, your still on a basal tie and could be caught by a branch.

That is a good system. I've used the technique for advancement a bunch, but didn't set the canopy anchor, just set up a PSP.

It's great for a Pine since you can work as much as possible on one side while ascending, then work the other side while on the way down.

The trick is to follow a faiy straight path during ascent so that the anchor side doesn't end up being in the way while making cuts coming down the other side...or having weird redirects that would make retrieval a PITA.

You also need to ensure there is a clean rope path for retrieval if you've installed an Alpine Butterfly as a stopper on the canopy anchor.

 

[MikePowers321]

That is a good system. I've used the technique for advancement a bunch, but didn't set the canopy anchor, just set up a PSP.

It's great for a Pine since you can work as much as possible on one side while ascending, then work the other side while on the way down.

The trick is to follow a faiy straight path during ascent so that the anchor side doesn't end up being in the way while making cuts coming down the other side...or having weird redirects that would make retrieval a PITA.

You also need to ensure there is a clean rope path for retrieval if you've installed an Alpine Butterfly as a stopper on the canopy anchor.

Yeah I was envisioning those common 150ft Doug Firs out in Portland. Sometimes I could only get my throwline half way up those beasts.

 

[oceans]

Yeah I was envisioning those common 150ft Doug Firs out in Portland. Sometimes I could only get my throwline half way up those beasts.

Exactly, never mind not being able to see what your line is over in a dense crown. Best to anchor over something good and visible and go from there.

 

[MikePowers321]

Exactly, never mind not being able to see what your line is over in a dense crown. Best to anchor over something good and visible and go from there.

Yeah man! Those Doug Fir limbs will pop on you too if your rope isn't right against the trunk. I had a good 10 foot fall/scare while being a foot out on the limb with my rope. Phew! Learned my lesson quickly.

 

[Crimsonking]

I keep my 16 strands for conifers and just limb my way up with ddrt. You can reset the top anchor (granted, not as easily) with the delta link even with a ring on the other side. I prefer a ring on one side for retrieval with a throwball ring. Personal preference. The retrieval ring doesn't get pinned between the link and tree as much as a ball or knot, but I've not seen an oval link that the retrieval ring would reliably catch on.