Luderick fishing is simple provided you observe a few details closely. One of these details is the use of an appropriate float. A float is required to suspend a bait at the depth where the fish are feeding, it then provides a bite indicator and finally it allows time for the bait to be swallowed and for a hook to be set.
Floats come in all sizes and shapes, some people even like to use small bobby corks and eggbeaters to target luderick. I prefer to use a centrepin reel for reasons spelt out in this article. When you use a centrepin it's only natural that you use a long stemmed float. Apart from anything else, a stemmed float gives you some weight to cast when using the centrepin. Stemmed floats can also give you stability in rough water conditions and windy conditions, they drift nicely in a current and can be very visible in all conditions.
Grice & Young manufactured a very large range of reels over a long period between 1950 and 1980.
This article seeks to list some of the reels that you may come across that aren't generally suitable for luderick fishing in Australian conditions, but are often available for sale, and could be a good reference for UK anglers.
Most of these reels are designed to have a large amount of heavier line capacity, you can tell this by the wide drum, usually at least 1 inch, and the deep arbour. The arbour posts are usually set well within the diameter of the handles.