Stevem1960 - while I appreciate your comments about the importance of speakers, I must comment that most people on this site (& Supratek owners in general) already have great speakers and are sophisticated enough to understand their importance.
While there is some merit to your suggestion, please note that simply dropping in a new (Stevem1960 approved) pair of speakers will not "solve" anything. In MY humble opinion, adding new speakers (or any new/different component for that matter) to a system will only reinforce the need for additional tuning.
There are many factors which come into play when building a system. Trying to create a synergy between components, cables, speakers, room and living situation (limited space-too much space, etc.) can be difficult.
This is why tube rolling is a very effective means of obtaining a more desirable sonic signature. It is much easier to buy & audition various tubes than it is to do the same with speakers.
Of course, cables make a significant change too... but even the most rare & expensive tubes are bargain priced compared to some of the cable offerings.