Rector - Northwood is hardly an example that could be compared to other units when you consider the rank of those that use the facilities.
With regards to paying the extra money for a better meal, yes that is an acceptable way to combat the poor core menu. However, when visiting N, Wales recently the 'Supreme' choice was ordered and it was slop and returned to the chef. The alternative wasn't much better!! Which was a complete shame, as previously dining there it was probably one of the better facilities I have used. More importantly, this whole PAYD/CRL puts the pressure on the ISS staff to make excuses for the inadequacies of the contract.
It would be interesting to see what HMP use to model their catering contract on?