Replacing KEF LS50s with Reference 1s

Has anyone done this and if so what is your conclusion?  The sources would be an Ayre C-5xeMP disc player and Sony HAP-Z1ES going through a K-5xeMP preamp to a VX-5 Twenty amp the drives the LS50s or Reference 1s.  A pair of Velodyne HGS-10s might be used with an SMS-1 bass manager to supplement LF.  I have five glossy black LS50s I'd be willing to sell to pretty much cover the cost of the pair of used Reference 1s -- I'd keep the racing red LS50s my wife so loves.

db