J Slot and Turbo Viper blades

[AliGage]

Porcelain Tiles J-Slot Diamond Blade (CPJ) - Diamond blades - dry cut - RUBI Catalogue

Hard materials turbo viper diamond blade (TVA) - Diamond blades - dry cut - RUBI Catalogue

Have ordered both of these for a job. The viper turned up today, got another week to wait for the J slot.
Hoping they're good, but with loads of questions lately about blades I was wondering if anyibe has or does have these and what your thoughts were?

 

[White Room]

Be honest never heard of them but will be interested in the results when your tried them...