Agree with Mikes comments. The 2014 was a good kite for people with the skills to get the best from it. And some , actually, a lot of people struggled with it. Some days I did, if I couldn't get enough space to get some board speed up, I would struggle getting out over the waves. But when it was in it's element, for me, it was sublime, IMHO. The GF loved them. We sold the 10m, wished we hadn't. Still have the 14m, because it's so nice.
The 2017 12m Union I have does generate a fair pull, some days I have to put it on the lower knots on the back lines, enabling me to get upwind easier. Otherwise I rely on pulling in some depower. Not all the time, just on those windy days. Bear in mind I am 96kgs, so not a lightweight.
Funny thing about how we all use kites differently. I was on my 12 a couple weeks back, and felt pretty powered, the back lines were on the further knot. I let another guy have a go as it was, because he thinking of changing brand. He rides RRD 13m obsession at the mo. He came back saying, it's def not a lazy mans kite is it? & I felt a little under-powered. He weighs 20kg less than me. So clearly a pull & go type of rider.
The 2018 9m we have is fast and generates power, very, very easily. If you like the 2014, you will like the 2018. The kite is my GF's and she's getting to like it more and more, she has only had three sessions on it, but the last one she was landing with less G's on the woo meter.