Warren G wrote:
how often do you take a 70 foot fall on a single bolt?
I sometimes take a 70cm fall (25cm above + stretch) on new glue-in bolts. Its terrifying! I wasn't suggesting they aren't rated or called into question their strength. Unless you are referring to the scientific use of the word "cooler" in my statement "Would have been cooler if...", I wasn't starting a debate, just stating my preference of what I think is cool.
...but if its a debate on the science you want. Then here we go.
Fall factor as demonstrated on video
Total Rope Out: Roughly 90ft (ground to bolt as an estimate) + 50ft of slack = 140ft
Total fall length: 50ft
Fall factor = 0.3571
Fall Factor if he'd been 25ft above the bolt.
Total Rope Out = Roughly 90ft (ground to bolt as an estimate) + 25ft of slack = 115ft
Total fall length = 50ft
Fall factor = 0.43478
As you can see 0.43478 > 0.3571. Therefore = Cooler.
BTW if you want my definition of a cool product test see this
http://www.rockclimbing.com/Articles/Gear_and_Reviews/Review_The_Yates_Screamer_243.htmlIf you're not committing to 120ft with only 70ft out.....you're not proving anything
Warren G wrote:
If you check out their other videos they demonstrate how to remove the bolt after heavy use.
I will look at them and report my scientific opinion

Warren G wrote:
Are these systems not superior to regular bolts in terms of damage done?
I haven't tried them, but think they are possibly a great alternative. For the record: I think they are a cool product....and I mean that in the scientific sense.
zb.