[corners]

Originally Posted by retrograde

Anyways, the two tools I like to use are:

Power Potential & Sweetspot Size scatter plots:
http://twu.tennis-warehouse.com/cgi-...eruniverse.cgi

Vibration Frequency:
http://twu.tennis-warehouse.com/cgi-...bfrequency.cgi

Using the above, I can see why the M3.0 and F3.0 seem similar to you, at least to a first order. Their power potential distributions and sweetspot zone areas are pretty similar.

Wow, the F3.0 that TWU tested has vibration frequency (dynamic flex) of 138. Most frames that flexible test around 58-62 RDC. The reason why people are reporting that the F plays soft is because it is soft. BTW, C10 Pro has vibration frequency of 137.