I'm a violin performer and I'm about to buy the venue di to put into my rig.

I have this current set up:
acoustic violin with a fishman pickup that makes me always concerned about feedback when I on stage.
orange guitar amplifier
pedal effects: reverb, delay, tremolo, phaser.

I would like to know few things:

Venue DI: will the feedback nocth solve my serious feedback issues?
Veneu DI: where should I put the VDI in my chain? VIOLIN > VDI > PEDALS > AMP/PA? How to use de effects loop of VDI and my AMP?
Venue DI: does VDI solve 60hz and 120hz HUM/noise issues?
Does LR Baggs produce low feedback pickups for violins?