The Tecnifibre TFlash 300 receives some spec and tech changes in its fifth generation. The TFlash 300 CES features Tecnifibre’s Progressive String Pattern, which features tighter spacing in the center mains for more control and wider spacing on the outer mains for better comfort. The shape of the beam is also thicker and more angular thanks to Cubic Edge Shaft (CES) technology. For extra shock absorption and a cleaner feel, HD Fused Grip silicone was added around the handle. The result of these changes is an increase in swingweight from the previous Power Stab model's 313 to 320 in this update, and it was a change our playtesters definitely noticed. On the upside, they found a more stable response, though some testers thought the new racquet wasn’t as quick or whippy as its predecessor. Serving was definitely preferred over returning for our playtesters, who enjoyed the TFlash 300 CES's extra power and spin potential. All in all, Tecnifibre's TFlash 300 CES continues to be a solid option for players at the intermediate through advanced levels seeking easy power and spin.