Hi Stephen,
Okay, no problem, I'll wait till I hear from you, I enjoyed looking at your great grandfather, I suppose I have looked at several hundred of these fellows down the years and on the face of it there was nothing that unusual about him.
One thing that did strike me though, he had left the relative tranquillity of life in Poverty Bay and sailed out to the Cape, presumably, at his own expense, with the intention of getting himself into the war.
The New Zealand government had already sent their own troops out and were busy raising more NZMR regts in New Zealand and your great grandfather could have saved himself the time and expense and just joined them instead.
I think from memory they sent around six and half thousand men and they arrived with the best horses in the country as well

If you are collecting QSA's, those to New Zealanders are very interesting, they did very well during the war along with the Australians and Canadians, they often distinguished themselves, much to the discomfort of the British staff, very troublesome and truculent people these colonials!
His attestation paper is of the generic type i.e. Colonial Irregular Mounted Corps and not the earlier Brabants Horse type, so the attesting officer is not General Brabant himself, and he is given the regimental number of 64 and is "posted" to Brabants Horse.
I looked at the nominal roll and both the QSA roll entries, I just assumed that you must have seen them so I did not copy them.
The rolls are available on line at ancestry and his entry in WO127 is here on this site, this latter also confirms his address, although the left hand side of the photo is a little indistinct.
The supplementary roll also confirms his SA 1901 clasp was issued on the 12th of June 1908 and sent down to him in New Zealand, it also confirms both his unusual rank and the initial of his forename i.e. B (Braham) which is not shown elsewhere as he just signs Walter Bayley, if you would like good clear A3 sized copies of these three latter from Kew just let me know.
Regards Frank