callyoushortly
Are you meaning proper, CFMU flow control in place of the MDIs? Well, it might not be an bad idea in theory but the problem is not the Galloway sector capacity of 42/60 it is more one of all those 42 coming in the 0700-0730 period. MDIs are therefore put in place to spread the traffic out a bit.
Anyway, you are right, money needs to be invested (much more acceptable word than 'spent', isn't it?) as the current short term arrangement is not a long term fix.
The truth of the matter is that there are far busier TMAs in the UK than the Scottish one. They have evolved with the times - smaller sectors, more controllers. Up here, meanwhile, they have tried address increased traffic levels with one very much part time new sector and no increase in controller numbers.
But, I suppose, they papered over the LATCC cracks in the run-up to Swanwick and that is what they are doing here prior to NPC.