Electrclyde, the MC Cruise is a plug-and-play installation specifically designed for the NT700. A couple of members from OZ have it installed and it apparently works seamlessly. Back when I was getting ready to install a cruise control it was selling for over $1,000 USD. The price has come down to $768 (and shipping may be added to that). Here's the link:
http://www.mccruise.com/collections/honda/products/9
The Rofstra, like I have, can be purchased from my buddy Gary Murphy at
http://www.murphskits.com/product_info.php?cPath=25&products_id=369
Gary sells the Rofstra for $260, shipping included. There is a good article about the installation of the Rofstra on Murph's site, written by a guy who installed it on his K1200.
My thread on the installation of the Rofstra on the NT [
http://www.nt-owners.org/forums/showthread.php?4777-Rostra-Cruise-Control-from-Murphskits-com] is still a good source of info (at least,
I think it is). I'm sorry I didn't document it with pictures, but I think my textual description of how we did it is almost as useful.
The operation of the cruise control has actually improved since we installed in 2012. It surges less, plus I've learned how to eliminate the surge. It also lets me accelerate above the set speed and then resumes on its own
nearly all the time. I still don't have the clutch disconnect switch hooked up, so if I want to shift, I just tap the brake lever, shift and then push the "Resume" button.
While riding my BBG last weekend, if I was climbing a fairly steep grade and bucking a headwind, the cruise would kick out. That happens when the throttle is twisted to maybe 80-90% of full on. I would simply shift down into 4th, and then either use "Resume" or just reset it. I learned that it will hold speeds of 80-85mph into a wind and up a grade just fine if you don't mind the engine winding up into the upper 6K rpm range. I don't mind that.
In looking at the MC Cruise brochure just now, I noticed that it does it's speed pickup from magnets in the front brake rotor mounts. I think I like having the Roftstra's electronic pickup better. Plus, the MC Cruise uses a vacuum actuator. I don't know if the NT will pull enough vacuum to operate the cruise control at higher speeds or not. The electronic actuator on the Rofstra seems to work at any speed -- although I've never tried to use it at much above 90mph.
If you do go with the Rofstra, and are using that thread as part of your installation process, be sure to read all the way into the thread because there are some important posts about how to wire it.
It's a toss-up for me as to which of my farkles is in the #1 position on my hit parade. It's either the Russell DayLong saddle or the Rofstra cruise control. I don't think I'd have been successful on my BBG if I hadn't had both.