[Elecraft] Heil HC-4, HC-5 & Yamaha CM500

[Robert 'RC' Conley]

After this past week ends NAQP contest and receiving several notices
about distorted audio on my K3/10 using a Telex MRB2400 aviation
headset. It might be time to up grade my head set to either one of the
above. Frankly the Telex becomes rather heavy after about 6 hours.
Since I operate pretty much equally between contesting and general DX
chasing and/or QSO I need a good all around headset. I would like to
hear from someone who has operated with all of them.
Thanks RC kc5wa