During the late 1990s through about 2006 I was using Btty Arylate blades. First a set of Keyshots, then this blade then the Timo Spark. They all are very similar which is probably why bttfly recommended this as a replacement for the Keyshot and a spark as a replacement for this Biside. Of the three this was my "least favorite" but I still like it alot and use it for robot and training my students. The Spark and the KShot seemed a bit more comfortable but I cannot really explain why. This is a high control Off- (an 9 in my book) blade good for spinners and allround players such as me. Its fairly fast but like the Spark it isnt a linear progression (which is also true with some allround blades like my Applegren AllPlay that will really kick at a high speed swing)

It is no longer available so its a moot point