A8, C8 or C10 for more throw?

Nice overview here: MXDL SA-76 "Turbohead" (PICS warning)

Best price to get and version here: http://www.ebay.com/itm/1800-LUMEN-CREE-XM-L-T6-LED-FLASHLIGHT-1x-18650-TORCH-LAMP-LIGHT?item=290709821379&cmd=ViewItem&\_trksid=p5197.m7&\_trkparms=algo%3DLVI%26itu%3DUCI%26otn%3D3%26po%3DLVI%26ps%3D63%26clkid%3D8355087334715940127#ht_2766wt_1095