You'd have to look at the elements of the offence, if you were creating your offence, and see how it relates to the range of other offences because after 14 years, the only other offence that Parliament has ever imposed is life imprisonment. It's a jump from 14 to life. That's why I said another option to consider is not to create a new offence but to create an aggravating circumstance under the existing offence such that if the aggravating circumstances exist, it indicates to judges that they should go to the high end, toward 14 years, as opposed to the lower end. Parliament can signal its intention to the courts to treat certain types of aggravated assault more seriously than others if the aggravating circumstances exist and then tell the judges that they shouldn't impose a higher sentence in these circumstances.
There are two ways: creating a new offence or creating the aggravated sentencing factor. Those are two ways that Parliament can indicate its level of denunciation and also signal to the courts that they should take certain circumstances more seriously than other circumstances.