Not gonna run another Igniter. For three reasons:
1 - on the Flow EX rims the profile is far too square. I've got the Igniter 2.35, but with the wider rim it just looks nearly flat. Those side knobs dig in on a shallow lean, but the break point is pretty severe and hard to recover from.
2 - This igniter failed in the same way another did. A not too impressive rock cut a hole right at the base of a knob mid way between the center and edge knobs. The first time this happened I was in an area known for sharp rocks. This time was at the bike park and there really wasn't much to cause the cut. It was odd and surprising. A tube fixed it but I've still lost a bit of confidence in this tire...
3 - Traction seems to be mediocre. This may or may not have anything to do with the wider rim, but I've slipped out a number of times already doing a slow crawl up rock. That's not an issue I've had with other tires until they get a lot more wear on them.
I'm going DHR II next and thinking I'll get a bit more bite from that and a bit better profile.
Not sure what compound you're Ignitor is but non Lust are pretty thin, ok tire, not my fav in a Maxxis range, for Enduro or regular rides my fav is still the Larsen 2.35 rear, currently run an Ardent 2.25 I like this tire but imo its too tall, I prefer the lower profile of a Larsen, Minion.
Im still trying to decide on the HR2 up front whether I like it or not, been running it a few months now super good Im real picky though, Minion on front is always my bench mark, Minion definitely initiates the turn quicker something Ive liked in the past, the HR 2 is in between the older HR and Minion, it tracks what line you pick, just a little more technique required in lean for me, again could just be me, I always found this with the orig HR 2.
For any bike park terrain it tends to different to natural terrain even if clear bikepark trails have no give, Id always run a 2 ply or bigger volume 2.4/2.5 front n rear, but thats me.
Just my thoughts experience anyways.
Schwalbe seem to being great things right now too.