So the manual says it's fine to use with one rope and even do a 2 man Texas tug above the marked rating plus you can use it for life support with no back up because it has a 10_1 safety factor, sweet!
It's not meant for life support or pulling ropes out you and your mate could have easily created force twice your weight or more by really given er the ol Texas heave ho ya know?
It's all in the book the book is designed to help you pass the test. they want you to pass. read it a few times maybe take a few notes easy I read the book a few times but was drunk every time and still got like an 80 or 90 percent overall plus I ate a bunch of valium while I was studying and...