i never used to run 1, mostly because i was so proud of my shiny new piper vernier lol. plus lazyness, lets not forget that

but on my new engine, i shal fit 1, cant afford the financial risk of damage to new engine, but none of this clear perspex cover stuff, personally i think it just looks a bit cheap n tacky, would much sooner run a standard item, maybe just painted with a modification here n there