They are looking at it though Phil, as I have and the problems are vibration, noise and torque. Hilti pulling the plug has obviously nothing to do with a fit for purpose tool and everything to do with cash as they finally realised that scaffs with a power tool they didn't have to buy will rag it to death within a week, welcome to my fekin world Hilti.
On the subject of the IW in general though, I have been talking to a torque specialist, and yes I didn't know they existed either. He has been setting me straight on a whole host of issues regarding these tools and the required torque required. For a start, the main gripe for these tools is the fact that the hilti 90-95 nm wrench is far too heavy to hit 50nm regularly without over torquing. The torque industry have long since accepted best practice for this to be done accurately and regularly is to use a tool with a much higher torque setting so the required torque is within the mid range of the tool. In other words, a 50nm tool would be no where near strong enough for scaffolding and the current tools on the market are actually fit for purpose. I learned a lot more but waiting for further clarification before bringing it to the attention of others, but anyone wanting to take my IW off me better have done their home work as I am definitely doing mine.