I love football!I tested a Spark 910 last summer and liked it a lot. I really liked their shock lockout system, a step up from what Giant has done. I also liked the way it was mostly a trail bike, but could be raced in something like XCM if one wanted. The only thing I didn't like about it was the front end seemed "floppy" to me. Granted, I'm coming from a 2014 Szd Camber, which most people think of as "twitchy". I also live in New England where there aren't a lot of trails with flow. We have endless tiny hills, but very few you can climb then bomb down, and most trails are tight, intricate and rocky/rooty. So if you didn't notice the "floppy" feel, I'd say go for it.
Wait, this is a football site. Why are we talking about cycling?
The bike I'm riding now is a 2017 Spark 910, and the bike before that was a 2015 Spark 910 (I had a '14 Scale 910 at this point as well), and the bike before that was...yep you guessed it, a Spark (but that one had 26" wheels). The geometry is completely different now though that they split the Spark into two lines: Spark RC- XC race and Spark- trail. All of my Sparks are of the XC variety prior to the split (last year I believe). The 'relaxed' numbers (67, 74, 44 mm) have me thinking too much. I'm sure that it will be great, just different. Even the RC bikes are slightly more relaxed now too. The new one also has 20 mm more travel (120 mm) and room for more rubber, comes with 2.4. The RCs are still 100 mm and come with 2.25.
I love football!