Chris,
The problem with the 103 is that its design principles hark from the late 50s/early 60s where system-building methodology was very different, and also the partnering equipment and ancillaries. Therefore different rules apply.
If you want to hear the 103 at its best, as was originally intended by the manufacturer, then you have to adopt the methodologies of its era. As I've said before, you can't fit a square peg into a round hole.
The DL-103 is a device for enthusiasts - people who are willing and able to go the extra mile to optimise it. It is not for the faint-hearted who just want a 'plug & play' quick fix.
If that puts people off then fair enough; I can't control their thoughts, but you either do the job right or not - it's really as simple as that.
Marco.