One thing that I would like to see implemented in the next version of the Sprinter is a variable Turbo mode. For instance you could have the machine in Spectrum mode running at 3.5MHz and have a percentage figure which you could raise or lower, so that you could have the machine running at 130% or 200% etc. This would make a great difference to games which need to be made a little bit faster and would allow you to have more control over the speed than you would with a basic Turbo On/Off mode that we have now.