Yes, it's the official second best method. Bear in mind that they recommend 222, which is not a strong bond, and that it is to be used with a light tightening torque, not the usual 35Nm.
If you install into clean threads with a decent anti-seize grease, no extra threadlock (the cups already come with a factory-applied solid yellow locking compound) and 35Nm, the cups come out pretty easily with a decent socket type tool, i.e. UT-BB130
The ones in my 585 are done with Loctite 222, but I've never had to try to get them out so I can't say whether it's any harder than with method 1.
Yes, it's the official second best method. Bear in mind that they recommend 222, which is not a strong bond, and that it is to be used with a light tightening torque, not the usual 35Nm.
If you install into clean threads with a decent anti-seize grease, no extra threadlock (the cups already come with a factory-applied solid yellow locking compound) and 35Nm, the cups come out pretty easily with a decent socket type tool, i.e. UT-BB130
The ones in my 585 are done with Loctite 222, but I've never had to try to get them out so I can't say whether it's any harder than with method 1.