I have use a HPG Original V2 chest rig and I love it. I use a MIC holster with it.

I mainly use it for Hiking and ATV'ing. It's great. It stays in place and holds a surprising amount of gear. I keep a Tactical tailor admin panel in it to hold mags and small stuff.

I have been very happy with this setup in the back country. Its not fast but it's not too bad.