aiya yalah i know that, but the point i am driving at is that you can no longer tell from the name of the racket alone how it will play in relation to its siblings.
yes, i was referring to the swing index system. i think it used to be take for granted then that a wilson with a SI of 4.0 is almost definitely more powerful than one with an SI of 6.1.
even today looking at the swing weight does not tell you the whole story as you'd probably have to look at the RDC too. but then you'd be delving into the detailed specs to get an idea how one wilson relates to the other, whereas under the SI naming convention one look and u'd know where it stands in wilson's range.
QUOTE(praetorian @ Oct 6 2009, 10:52 AM)
Not quite sure what you mean, what exactly are you looking for?
The old Pro Staff 6.1 , do you mean classic, the one with black, yellow, and red (see pic)
If stiffness look at the stiffness index.
If you are looking at at Swing Index ie last time some Wilson rackets are 4.0 SI (Swing Index) I would gather now these days you should look at swingweight.
http://www.tennis-warehouse.com/descpageRCWILSON-KOBRAT.htmlhttp://www.tennis-warehouse.com/descpageRCWILSON-KTOURM.htmlUsing your examples, the stiffness for Kobra Tour is 60 where as for the Ktour the stiffness is 64.
The swingweight for the Kobra Tour is 309 and for the Ktour is 331.
What this means Kobra tour is slightly softer than Ktour and you can achieve a easier swing with the Kobra than Ktour, but solidness ie, mishits the Ktour is slightly more stable.Hope I have helped.
This post has been edited by scirocco: Oct 6 2009, 11:37 AM