SouthSoundTree
Treehouser
I second the BMS Belay Spool for the situations Scott indicated. A 1/2 inch dynasorb/ polydyne could be a great combo since you have little rope in the system to further decrease shockload. I use three strand tree master a lot as my 1/2 inch line which has some give to it. True Blue would be another good choice, provided you have the room to let it run/ stretch.
The time saving over going up and down to reset the porty, especially if you want to set it above your reach (perhaps remotely, like a floating block style) is great. Their only about a buck-0-9, and compact. I often choke or basket a spectra sling with at steel biner with the BS, as I know the SWL is with reason. I haven't gone as high as 500 pounds, but probably 300-400 with the light duty sling.
The time saving over going up and down to reset the porty, especially if you want to set it above your reach (perhaps remotely, like a floating block style) is great. Their only about a buck-0-9, and compact. I often choke or basket a spectra sling with at steel biner with the BS, as I know the SWL is with reason. I haven't gone as high as 500 pounds, but probably 300-400 with the light duty sling.