My pleasure, Ross.
Just so there is no confusion, the knife kit comes with an Xtra Coarse Silicon Carbide stone (grey in colour and not shown in the above pic). What I am recommending is an Xtra Coarse Aluminium Oxide stone as well. This is extra.
Two other stones you may want to consider are a DMT coarse diamond stone to work on really dull edges or for re-profiling an edge (use VERY light strokes). The other stone could either be a Black Hard Arkansas stone (about 3000 grit) or a Translucent Hard Arkansas stone. Ron does not think these are really necessary but some people like a more polished edge. Infact you will have an excellent edge after honing with the medium aluminium oxide stone and do not really need to use the fine, white coloured, hard Arkansas stone that comes with the kit.