I need todo something to make the camera easier to shoot handheld long interviews etc with out a monopod,

right now Im running factory batterys

so I was looking at the exmount vs the ST7 mount any opinions or suggestions

thanks

You might want to consider a more generic shoulder mount which you can use with other cameras, especially as your currently using BP-U batts. V-Lock batts and charger are not cheap items. The ProTech works, but it's not the most elegant engineering I've seen.

You may want to check out my solution:
EX 3 Tripod plate and Shoulder Brace Options (http://www.westsideavstore.com/index.php?p=product&id=29)

I can vouch for Olof's mount. It's pretty much a permanent installation on my EX-3. However; I did already have the IDX brick system, so it was an easy and cost effective transition

Olof's is an excellent support system. You may also look at this one from DM-Accessories: DM-Accessories — EX3-SHOULDER Shoulder Brace For EX3 Camcorders (http://shop.dm-accessories.com/products/ex3-shoulder)

I have used the original design for the last 3 years to good effect.

here's my support shoulder brace. The nanoflash is screwed on with a bracket on the back. Works for me!

I've become a big fan of the Genus Rig. It's the first outfit that lets me shoulder mount and maintain balance and functionality. I also use the original batteries or Switek to run my Nano and the extra weight on the back just makes balance a breeze, even for long periods.

With the aid of Manfrotto zoom controller (the smallest I could find), I no longer have to remove my hand from the handles to start, stop or zoom the lens.