The high-powered "Txxp" models in the T range were what lead to the creation of the W range. More recently, I think the W range might have been superseded by s

The high-powered "Txxp" models in the T range were what lead to the creation of the W range. More recently, I think the W range might have been superseded by some certain models in the P range, though I'm not too sure about this.