Cliff Barnsby Diablo, excellent condition 17.5" with medium/medium wide tree (it's a #3 which is their standard medium, but it's quite generous).  Extra-forward flaps - 14.75" from stirrup bar to bottom of flap, and 14.75" across at the widest part of the flap.  Wool-flocked and gusseted for ease of custom-fitting to your horse.  Excellent saddle for fox hunting and eventing -- very comfortable and secure with front and rear blocks under the flaps.  Description from the saddler's website below:

The English have long been known as experts when it comes to making a great saddle, and the Diablo Event Saddle is handmade by Barnsby saddles in Walsall, England. These are created with exceptional quality control and every one is thoroughly checked before ever being shipped. This saddle is designed on a Beebee and Beebee tree that has been manufactured with exceptional attention to detail and tested with extensive research and proven by some of the world’s best riders. The trees are made of laminate veneers and beech wood that has proven endurance and durability.

There are many things to look for in a quality saddle, and in particular one that will be used for endurance or cross country competitions. One critical aspect is that the horse and rider maintain close contact so that the rider can give clear signals. The angles of the side bars on this saddle provide a more narrow twist which allows the rider to attain this level of contact. The design of the Diablo Event Saddle provides excellent clearance between the saddle and the withers, plus the points allow freedom of movement around the shoulders.

It’s certainly imperative that the horse be comfortable to minimize injury, but it’s also important that the rider be comfortable as well. This saddle uses high quality leathers for the seat and the flaps, plus the highest grade foams and wool flock adds to the comfort. The Diablo Event Saddle is a true cross-country saddle that has a more forward cut flap that creates a shorter leg position and encourages a more secure, deeper seat. The Diablo saddle is great even for riders with long legs. Riders who own this saddle have praised it's comfortable seat and ability to fit some of the hardest-to-please horses.