after asking this matter to TW they told me that is the same string, the packages is just slightly different.
Shuan you wre rigth
Imago, I strung my MPMP at 46lbs with RPM full bed and at first I thought it lacked a lot of a power( it's definitely not a powerful string) but after two session with the string maybe because it lost some tension, I felt it was much better power wise. It's a bit less powerful then luxilon alu power. however keep in mind I use a 18/20 string patter and my racquet is a low power raquet as well.
If I had a 16/19 string pattern racquet I would strung it at 50lbs
In my opinion this is one of the best string I have tried...it might last not much but it's very nice.