I tried risers once for a Merida 100 and it was really horrible only having one hand position . Tried flat bars without bar ends too and hated that too for the same reason but also with both types of bar I struggled to control the front end on steep ascents because I couldn't get my weight far enough over the front wheel . That's just my experience and I know there seem to be loads of people who swear by risers , perhaps Dylan has a valid point about risers and bar ends .
Flat bars give more control, risers give more comfort. I like flat's, personally, but I think that risers make it easier to pull the front end up if 'hopping', etc.
I don't personally think Flats or Risers makes any difference at all.
If you find a position you like with Flats or Risers, then match that position exactly with the opposite, playing with stem height / spacers whatever, then they are both exactly the same.
My Hack bikes got Flats, other bikes risers can't tell the difference, think it's all in your minds.
( Ofcourse Neil is changing the position of his grips going from 1 to the other, most likely )
Certainly makes a difference for me. It's to do with the position of the wrists, it will have quite a bit to do with how your body is constructed, so some will find one better than the other, some will be fine with either.
But only cause your hand is 1inch higher for instance, the shape of the bars, even if they done little crazy straw curls doesn't make abit of difference.
Risers, just make it easier to tune the hand position, you got used to your Flats position, so anything else will feel wrong at first.
Same as demoing bikes, loads of different set ups, it's just luck at the time of demoing if it's setup how you like it or not.
Tuning ability Nick, you know can role them around 360degrees, to make the bike longer or the bars higher.
They don't look stupid with bar ends on anyway, they look like bars with bar ends on, just fashion dictates to you, that they look stupid, who cares it's a bike it's to be ridden not looked at.
It's the backsweep that causes the prob's dyl., if they were straight they would be fine. I don't go looking for a bike with risers to feel crap, I just get on it and go, but I never felt properly in control of a bike until I used flat's, which felt odd at first, but instantly better despite that feeling, and have stuck to them since. I have nothing against risers, and would be happy to use them, but they feel awkward.
risers made my bike feel to jumpy, the flats just get everything done, and it steers a bit sharper, and with a fork that can go longer than the frame's intended for, it's handy
Let's face it risers are pure fashion. They are inferior in strength to flat bars and they don't ride any different. You can get the same bar height using a higher stem and a flat bar. It's just that risers look more downhill which in turn look more MX.
Having said all that I have risers on my two One Ones and flats with bar ends on my race bike. So I must also be a fashion victim!!