Method of endorsement is important because it depends on what is the motive of endorsing the check. Moreover different methods have different type of requirement while endorsing the cheque.
Example if you want to simply transfer a negotiable instrument then you can use a blank endorsement where in there is only payee's signature on it this type of endorsement is given to the other party for payment which can also be transfer to to third party by the receiver.
Example if you want to restrict the use of endorsement you can use restrictive endorsement wearing the uses of endorsement or check will be limited. The most commonly use phrase in restrictive endorsement is "for deposit only" which means the cheque can only be deposited in the account.
Example if you want to authorise payment xx other than the entity which is mentioned in the check you can use special endorsement wherein you can endorse the cheque to the entity other than mentioned in the cheque.
So overall method of endorsement depends upon your use and the motive of endorsing the cheque
Answers to the last two questions are
When endorsed in the manner, cheque becomes a bearer instrument is called as blank endorsement
Create a two party cheque which is more easily deposited than cashed is called as special endorsement.
Blank Endorsement Restrictive Special Endorsement Endorsement Uses the phrase "For deposit only to restrict the use...
11. Ivy signs a check payable to Jon and gives it to him. Jon indorses the back of the check by signing his name, and transfers the check to Ked. To negotiate the check to Luis, Ked must a. write "Ked" on the back. b. write "pay to the order of Luis [signed] Ked" on the back. c. deliver the check to Luis. d. obtain Luis's signature on the back. 12. Rollo obtains a check payable to his order from...