You know me when am I not thinking about moving around my stuff.....
Tomorrow I am picking up a Adcom GFP-555 preamp and a Dynaco ST-80 is on its way as well so I will be trying them out in various combo's. As I and others have found out that different sources just go better with different speakers. I think you do have to mix things up among what you have to see if you really have the best match. However I have several systems and a garage that attest to what can happen if you have too much of a "wandering ear".......

Not to hijack your thre PC but......
Daks-did you ever pick up those TF-500's