I like my Mammut Supersafe for the following reasons:
- they have been making rope for 140 years.
- they are the only company who drop tests one rope out of every batch for consistency.
- they use a lap coiling machine so that the ropes are ready to use as soon as you get them, tangle free.
- it has Mammuts COATINGfinish: individual rope strands are Teflon coated in order to minimize chafing and improve friction co-efficiency. Loading, e.g. through a fall, is uniformly distributed through each individual filament, thereby optimizing performance. In this way, substantially lighter ropes with the same number of falls, or ropes which can hold a substantially higher load and have the same weight can be made. In addition to better performance in standard testing, the COATINGfinish gives their ropes furthor advantages: they have reduced rope drag, absorb less dirt and moisture, are specially easy to handle and maintain their level of performance for longer.
- it has superDRY: most companies only treat just the rope's sheath, but Mammut treats both the sheath and core, This makes the superDRY treatment more effective and durable, and optimizes handling, abrasion resistance, dirt resistance, and life span.
- it has duraFLEX: a heat treatment process on the finished rope allows it to maintain smooth, consistent handling and long lifespan.
- it's rope ends have been welded with an ultra sonic process which is permanent and perfect. The rope core and sheath are therefor permanently joined forever. No more sheath slippage.
- it has 3 markings, one in the middle and one 5 meters from each end to prevent repelling off of the end of your rope.
- it is 1 of only 2 ropes that I have ever heard of that passed the UIAA's sharp edge test. That test was found to be inconsistent though, and will no longer be in effect here soon.
You might be thinking that I just cut and pasted that crap, but I respect Mammut so much I typed a lot of that stuff right out of their pamphlet that comes with their ropes. The pamphlet is awesome, it tells you so much about how to take care of your rope, and it even talks about fall factors.
There is much more to their ropes, but I am not going to type every detail out, but I'm sure you get the idea. I took my rope lead tree climbing, and it ended up wrapping all the way around this tree because of our route, and with all of the taking and giving slack(as hard as it was being wrapped around a tree), not the slightest sign of sheath wear occurred. When my Gri was brand new, my friends 70 meter Supersafe was hard to give slack, but now that my Gri is broken in, it is as simple as pie. I would have thought the more a Gri is used, the looser the spring would get and the harder it is to give slack, but a friend showed me his old Gri, and showed me that the metal wears down and actually makes it easier to give slack the older they are.