Thanks for review, it is quite informative. I'm also interesting in Bio 400T and Bio 500T too.
Seems like you prefer 400T over 500T. What are the most important attributes which favors 400T ?
How is the manuverability of the customized 400T comapred to 500T ?
Bio 400 Tour - Yonex PTP (1.25) 51/49 lbs, Youtek Prestige MP - SP Tornado (1.17) 46/44 lbs