Primrose - interesting that it's the highs causing the problem. I haven't come across that before. It certainly does effect everyone differently.
A few thoughts:
Good to hear you are being referred to the Diabetes team at your local hospital. They are far and away a better resource for answers/advice than your GP. That isn't meant with disrespect to GPs, but a diabetes specialist nurse at your hospital will be in daily contact with Drug companies, Diabetic consultants, dieticians. They really are fantastic - you will be pleasantly surprised.
One strong recommendation I have, is that your DP looks at courses such as the DAFNE course. All hospitals should run one or two of these a year. Your DP will learn a hell of a lot on one of these. I went on one grudgingly last year, thinking I already knew everything there was to know - I was proved wrong very quickly:
www.dafne.uk.com/
If your DP is struggling to bring his glucose down quickly enough - it might be worth asking the hospital if he could be resistant to insulin. After going on the DAFNE course, I found I had developed a strong resistance to insulin over the years, particularly in the mornings. Am currently hoping to go on Metformin to help with this.
If you're looking at pumps, you could also ask the hospital about a Continuous Monitoring device. These are currently only used on the NHS for young children, so you'd have to pay a portion of the cost. I've looked at this, and it was around £180 per month at my hospital. Maybe not an option, but worth bearing in mind. Pumps have their drawbacks, but are incredibly easy to "install" now. I haven't come across anyone who went to a pump, but then went back to pens.
Will send you a PM about other bits & bobs which aren't currently mainstream in the UK at the moment.