Welcome to the board Daniel!
I, for one, will embrace another FF14bolt locker. I'm not real tickled about the pricing on an introductory product, esp. one marketed by Tera as they have some issues and I don't need to pay to help them 'prove' their line. I feel like I should get a break by buying Tera stuff, due to their reputation. {that said, I do think their quick disconnects for the D30 are some of the best in the industry---kind of spendy, but worth it on my rig---real 'hard-core' type of product there though---I always see competitors at UROC disconnecting their swaybars before a comp
. The Tera housings have had some reported issues, but they seem to be in the past and have a decent reputation the past few years or so. I'd consider one, but I'm kind of a cheap bastid and will search for what I need in the junk.}
I'll probably buy a Detroit and/or take a 'wait and see' attitude on your selectable simply due to the price. Honestly, it looks like a cool, solid design, and I'm sure it will be in some competitions and we'll see how the thing will hold up to some serious abuse. Attaching your product to the Tera name may turn out great for both companies, but you're not going to get a glowing recommendation on Tera products across the board from many people. I'll keep my opinion open on this product and hope Tera is looking to enhance their reputation with this line.
I'd love a selectable locker in the tow rig (FF14 bolt). I've had interesting problems with a 'tight' limited slip in snowy conditions and had to engage the front axle to even be able to move my truck around the roads. I'm sure it would only be worse with a Detroit and would love to be able to turn the locker on and off with reliability.
I think Mike makes an excellent point on the lower end lockers (D30, etc.) and whether you get a shop's blessing on installation. A lot of us here will install our own gears/lockers and will create our own opinions. We will also tend not to drop big bucks on installation when it's something we are confident in doing ourselves but may heed a recommendation from a shop we trust.
An ARB is kind of a tricky install and you will get opinions across the board on the reliability of their product. I have had great experience with their products until I bent my housing. I've had 'issues' with that locker since then. Hopefully being cured now.........time will tell (new housing, complete teardown and inspection of said locker---Props to CruiserOutfitters (Kurt) for getting me information and some spare parts on the quick on a product that they don't normally service). This locker will be an easier install than the ARB with the actuation on the cover, but there are also issues with the cover actuation that seem to have been addressed in previous posts.
I've only had one problem with my air compressor (I blew a fuse and I forgot where I put it on the installation) but had a great time wheeling 'open' again for the day that it took me to remember where I had put the fuse. I've not had any problems with ARB blue lines, solenoids or switches which seem to be pressure points for anyone interested in that line {my compressor, switches and solenoids are in the passenger compartment and I'd assume that that would add to my success}.
Best of luck with Teraflex, Daniel. I honestly hope things work out for you and will watch with great interest what happens to your selectable locker. Some of the members of the board would make great testers of the product if you are still needing those, both in competition and in 'real world' types of environments.