Funny, my shop is ordering a demo Seven Ti hardtail according to my specs, and I am getting a straight bar and bar ends. One thing, I am going with a Salsa Pro Moto bar, the widest available at 660mm, the length of many risers. 580mm is the length of most straight bars, and I feel compacted on them.
I might also go with a 10 degree rise stem to get the same height as riser.
I built an XC bike with flat bar and barends a while back...bar was a very wide Titus flat-tracker. Loved the barends for long climbs on fireroads, etc., but once I started taking it on singletrack, I ditched them. Didn't find the time on techy stuff to switch between the ends and the grips, and they hooked brush from time to time. Honestly, they sorta started to scare me. Maybe if my bar was narrower it wouldn't have been so bad. But the width of the bar made climbing more comfortable in and of itself...lots of leverage and non-twitchy steering, with an opened-up riding position.
The only bikes i still run barends on are my 700c flatbar commuter, and my real light setup that I use for Southeastern style XC races and shortrack. On both bikes I run Onza pro-cut CWA's and I cut the bars down to 20". I pretty much ride on them all the time, and have the same body position as on my road and cross bikes. After racing as much DH and BMX as I do now, i prefer a good set of 35mm rise 25" wide bars on my normal XC and trail bikes.
Too bad the picture didn't show the 2 straight miles of constant rock garden to get to that point. That was the longest hardest rockiest bastard i've descended. Not the most technical just a rocky bastard straight and simple, no dirt, just rock.
i'm glad i had bar ends to conserve strength in my arms to limit my crashing to a minimum on that stretch. :evil:
I pulled some out of a dusty box along with a flat bar and put em on my single. Thought the exta leverage would help, but with a wide riser bar the extra leverage seems negligible. Steering with a narrow stance sucks and bar ends seem to inhibit no-handers.
I think I ditched them in the early 90's simply because I wanted a wider grip. I found that a wider bar did the same for me as a set of bar ends, but was far better for going down some of the stupid shiite we got happening around here.