The main reason for 2 attachment points on the spar is if you cut through or kick out.
If you kick out you'll go straight down so another choked rope etc will hold you.
The chances of you cutting through the cable you have is zero so for you situation a second tie in would mainly be for kick out.
That said, some say it's also to access the ground quickly. You could have a choked lifeline with a figure 8 decent device installed your prussic backing it up. Lets say you were blocking a hollow spar and got hammered by bees you could rappel to the ground. Now the probability of that in a pine like your doing is zero. Especially with the amount of small stub things likely to catch the flip line.
Also it doesn't state anywhere that your second tie in point must reach the ground.
I use 2 attachments in palms coz they're not so soft to stick ya spikes in and I have kicked out here and there. When blocking I'll use two lanyards. Palms also aren't a tapered dia nor have stubs so it would be a straight ride to ground. |