Backup Futures Broker

Since my IB outage last week I realized I need a backup broker.

I wanted to chose between Amp futures and Mirus.

Anyone happy/upset with either of these brokerages?

 

I would include Open ECry into the mix as well.

http://www.openecry.com

Good people at Mirus, so another good option.

 

I use Ninja Trader for order entry so I need one of those two.