Soliloquy or Silverline?

I listened to the Soliloquy 5.3 this weekend. The 6.3 were not available for me to hear. But I don't want to spend $3K on just the mains anyway. However, I noticed a pair of Silverline Sonatina II that are demos for $2200. These are normaly $4000 I beleive, twice that of the 5.3.

Has anyone heard the Sonatina II and compared it to the 5.3?

Also, does Silverline make a center that matches it?