Toning Down a Shrill Band Organ

Greetings,  I'd like to hear the opinions of some experienced band
organ people on the following situation.  My Frati/B.A.B. 48-key organ
has a rank of piccolo pipes in front and another rank of 1' wooden
flutes directly behind it.  Right now the organ is very ear-piercing,
which I understand is somewhat characteristic of these organs.

My questions:  should I accept this and leave it alone, or can I
achieve a more pleasing balance by facing the flutes backward -- or
perhaps isolating the piccolo pipes by adding a manually operated
register?

Assuming I leave the organ as-is, would it better to tune the two
ranks in unison, or slightly off pitch to produce a tremolo?

Thanks for your help!

Craig Wiley
Polk, Ohio

 [ The calliope has the same problem, in my opinion: the higher
 [ pitch notes are usually much too loud.  One solution is to
 [ install a restriction in each pipe and re-voice them.
 [ -- Robbie