Easy one this, the Champion Hurdle.
Can't answer this one fully as haven't seen the likely opposition, but hard to envisage a scenario where it will do him any harm. Don't think the purpose of any prep race is to show the full hand. I still don't see how a race over the minimum trip that may end up run at a farcical gallop will aid Zaynar's chance in the Champion Hurdle.
I think there is every chance the horse could sulk or race lazily if thrown into the fast pace of a 2 mile Champion Hurdle if not well prepared.
People point to Istabraq and Hardy Eustace being stayers that dropped down but they also campaigned at 2 miles at some stage before their Champion Hurdle succeses.