Brad on Superior Drummer 3 SSD Drive

Yes, so when you install the SD3 product (standalone and plug-ins) it will read and find your SD2 libraries by using the configuration of your previous SD2 installation. However if you;
A) Buy the SSD with the SD3 core library installed, go to Settings > Libraries; select the "Browse for Library Path(s)" button and navigate to the drive with the SD3 library.
B) Install the SD3 core library using PM (Custom Install) , SD3 should find the library.
C) If you install the SD3 library to the default location, but move it to another location go to, Settings > Libraries; at the end of the library you moved you will see a menu indicator (3 lines), select edit path and navigate to the location where you moved the library.