Hi Mate
I have found that Black with either a silver or Gold Rib tends to work very well , most of my buzzers are tied on Kamsan B110 Hooks they are weighted with the curved shank ,very strong so there is no fear of them straightning.They are tied with just Black tying thread and a fine wire for the rib , then completely varnished .
Fished either under an indicator or a very slow figure of eight retrieve they are deadly and the fish take them very confidently . I have had fish up to 25lbs on them ( Ravensnest in Monmouthshire )and the take was the slightest of takes no indication of the size of fish that had taken it. Give them a go , I am not a great fly tyer but these are easy to tie . Check out Diptera.co.uk it's a fly tying site which will give you step by step tying instructions .
Regards