How to deal with an over shiny finish ??

Good day one and all,

                             Thinking ahead here. Working on my Revell 1:32 Hawker Hunter, camo done now [not going to mention how hard that was to brush on], all sorted and 'Future' shiny.

Perfect for the transfers (decals), but I think it's a little 'too' shiny even for a Brit bird of the era [1960's], even though they did keep them very clean. I've done some tests on the camo colours and a semi matt is a bit too dull, any advice on how I can cut back the shine ? Bearing in mind that at the moment I'll be brush painting the coat on. Can I doctor the 'Future' ? What would I put in it ? UK based so I don't have access to Model Master or Testors stuff here.

No hurry, as there are a gazillion transfers (decals) to apply.

All the best,

Mick C.