The short stroke Manx Norton 500 was faster than the long stroke Manx Norton 500, but my short stroke Triumph 500 was faster than a short stroke Manx Norton 500. However it was a piece of shit. If it was balked in a corner, the clutch need to slipped to get back into the power band, and the bike would go sideways. My Seeley 850 is the easiest motorcycle on the planet to race really well. I can just flick it into corner while braking. then immediately get on the gas and power full bore through the corner, under the other guys and with less lean. With most bikes, the rider cannot gas them until they are almost out of the corner. When I built my bike I believed it would be useless, because I knew how most bikes handled. The 850 motor is radically different in the way it needs to be used.
When my bike self-steers it's way around corners, it feels absolutely wrong. However it is very effective. If I gas it when on a lean, it turns in the direction of lean and stays more upright. I used to be very careful with the throttle when racing. Smooth power delivery is better, when you accelerate really hard when on a lean.
I only ever picked-up on this stuff, because I rode a Short Stroke 500cc Manx Norton and I know what they do when you gas them when on a lean. It is the reason they were much faster than most other bikes. The weight distribution is important- needs to be well forward, or you can lose the front.
Of course I might be an idiot and not know what I am talking about.