Hi Alex,
Yeah, I thought of getting the T18+3 as well, but decided on keeping my nearly new T15+3, as the difference is really marginal, and the weight is of a higher importance, if doing more labour with it.
Still, the clip is a nice feature. The swap from a TDK12 to Aa T15+3 for me was huge in power, battery time, noise, weight and precision etc, but not so from the T18+3 to the T18+3. When the T15+3 finally give up, I think there's something far better in the forge.
Cheers,
Jacques.