Check mike browns web site.If you like what you see give him a bellyou won't go wrong with a mike brown whippet he breeds big strong whippetsI agree with you,mine although not direct from mike has made 23 1/4Don't know much aout M B whippets or how long he's been breeding em, but big purebred whippets have been around for many many years. I owned a 22.5 tts dog 25 years ago, and his sire was same size, dam was almost 21 tts, both had laguna in em but mainly nevedith and some nimrodel lines. Also seen plenty of purebreds of well over 20-21 tts, dogs and bitches, for many many years, and the o