Manch had many Regulations on yesterday to keep their sectors Bandboxed due to lack of staff. This can easily be confirmed by checking the regulation type with CFMU Brussels i.e. staffing regs. Rumour control has it that this is due to the staff cutting back on overtime due to the unit becoming completely reliant on it to staff up on a daily basis.
Instead of whinging about it on here, file a frequency congestion report with NATS and it will be investigated and reported back to you or your company.