No one has been releasing more compelling new equipment and marketing it more aggressively this year than Callaway and TaylorMade. So maybe what happened on Tuesday was inevitable.
On the practice green at the Shell Houston Open, TaylorMade unveiled its new Spider Blade putter. The TaylorMade rep who goes by the Twitter handle @CharlieTour tweeted out a photo of it , and said, ''Here's a first-look @TaylorMadeGolf's new Spider Blade putter - coming soon - from the practice green @ShellHouOpen.''
Clearly, the introduction didn't escape the notice of Callaway Golf, whose Odyssey division has been actively promoting its new Versa putters  this spring. An hour after the TaylorMade tweet came a reply from Callaway Senior Vice President Harry Arnett , who responded: ''Just got pictures sent to me by our guys @ Houston event. The Versa knockoffs have made their way to Tour already! #thatdidnttakelong.''
The putter on the right is the Odyssey Versa #1 blade, one of several putters in the Versa line whose dominant feature is the striped head – the thick black and white stripes running laterally down the head to make alignment easier.
The putter on the left is the TaylorMade Spider Blade. We don't know much about it yet, but it also has a distinctive black and white color scheme.
TaylorMade didn't respond to Arnett's tweet, but we have a feeling this discussion is just beginning.