Mike:
That's the second time that someone has provided you with that link above, since it was in my post (on your other thread) last night:
http://www.theanswerbank.co.uk/Law/Question747 597.html
That's the actual document which the judge must refer to and, as I previously stated, he (or she) can only pass a sentence outside of those guidelines under genuinely exceptional circumstances.
'GBH with intent' is only one step below 'attempted murder'. Given that the maximum penalty is the same (life imprisonment) it's almost the same charge. Anyone convicted of it can expect to receive a lengthy prison sentence.
As stated in my other post, your best chance of getting the sentence substantially reduced is to seek (through your barrister) to get the charge reduced to ABH. (My previous post included a link, to the CPS website, to show the difference between the two charges).
However, any offence of violence involving
pre-meditation almost always leads to a custodial sentence. If you're convicted of GBH with intent your chances of avoiding prison are absolutely nil. If you're convicted of ABH there's a
very slim chance that your barrister might be able to persuade the judge to pass a non-custodial sentence but that chance is probably only around one in fifty at best.
Chris