5) Paraguayan harps subsequently experience less structural breakdowns. This is largely because the Neck/Harmonic Curve is centered precisely over the soundboard and sound chamber at a 90-degree angle. Thus, unlike all Celtic lever harps, the immense pressure the harp is under from the combined string tensions is more equally & evenly spread across the whole structure of the harp. 

First, the string angle is steeper, pulling up more easily from the soundboard which puts less pressure on the soundboard; less cracks & tear away. See Figure 1Additionally, on a Celtic harp, the Neck is offset to the side where the strings attach. Therefore, it is continuously being pulled sideways down to the harp. The Paraguayan harp's strings pass through the center of the Neck, keeping all string tensions equalized, side to side, with far less chance to break the Neck & soundboard compared to a Celtic harp. See Figure 2 All in all, this means a Celtic Harp is built far heavier and can be less responsive than a comparable Paraguayan harp. Conversely, Paraguayan harps can then use lighter, more musically responsive woods for the harp's superstructure. 

The harmonic curve (the Neck) of a Paraguayan harp is rivaled only by that of a concert harp. Paraguayan harps are engineering marvels - exceptionally lightweight, which produces a brilliant sound. Since the strings run through the center of the neck, the tension of the strings actually holds the harp together in a balanced way. And, most importantly, like the Paraguayans, we should strive to make our harps as light as possible. A lighter harp means a more responsive sounding harp.

6) Paraguayan harps use conventional guitar type tuners for string tuning. These are faster & easier to use than ones found on Celtic harps. Plus, this makes tuning a large Paraguayan harp far faster than comparable Celtic harps. (That is a big advantage when working with 36 strings everyday!) 

And, one does not risk reaming out the wood where the string tuning shaft is located on the Neck/Harmonic Curve (like on a Celtic harp), leading to expensive repairs and otherwise, continually slipping & de-tuned strings. 

A Paraguayan string tuning mechanism is straightforward and inexpensive to repair or replace. 

7) The most important reason is the beautiful, bright treble and efficient, crisp bass sounds that come from a Paraguayan harp. These harps are built lighter which means the resonance & tones are often sweet sounding treble & firm bass.