I demoed the old model Nova and the long front handle is a joy for one-handed semi-powered riding on a wave. The Mode Pro has a slightly shorter front handle and it just misses the sweet spot. It's still pretty good though.
I am a touch sceptical about the Shiftlock thing. It seems like a bit of a compromise to have an adjustable/configurable handle system when you're likely to use that capability once when the wing is new.
The latest Foiling magazine has an ad and an article about Shiftlock. You can read it for free from your public library using the Libby app.This is a link to Bayside library. Don't know if it will work for you.
libbyapp.com/open/magazine/baysidelibrary/10559842It's a typical ad-as-article but they say a few things. The cord thing is called a "bolt-rope" which is the name for the rope reinforcing around the outside of sails. Google says bolt rope products are pretty common and the concept of clamping things onto it is old tech.
Apparently the Shiftlock makes the strut stiffer which improves handling. They say you can shift the handles around very quickly and easily. Not sure why you would want to do that once it's all set up. You can get camera and paddle mounts.