I've just measured the WP blazer and its a touch over 29" collar to hem. I'm 6 foot and wear a 38" blazer. Just measured one of my Reiss suits and the jacket there is a little over 30". Its amazing how much difference an inch makes. The pic below gives a good view of how the jacket sits length wise:

Interested in thoughts on the length.

Looking forward to seeing pics of yours too!