It's really worth trying to battery power the HAT separately from the Pi3, only needs 3.3v, it does things to the sound, reinforces every note gives more dynamics and just makes the whole image more believable, much better bass with more slam......amazing really.
Goldring G99 with Hydraulic reference arm, Logic DM101 TT, Rega 250, litz modded, Raspberry Pi3, Justboom Digi HAT spdif into Chord Mojo DAC, Avondale modded Naim CD6. Amplification: Valve - Leak TL12+ pair, Passive pre home made, SolidState - RMS T65 monoblocks, Grad One preamp. Celestion Studio 66 monitors (restored) on carbon fibre stands, RMS Revelation 2's and Revelation 1's, Stands Unique Klarity. Stands Unique Carbon, TWS Wall supports, Avondale Audio black link cable.