The talk was about the bit holder, not the bit? And in case of the magazine adapter, you need to use the 152mm bits. But even if the bit is slightly different... you can just adjust it with the depth adjustment, if within range.That is odd. Not aware of any ‘special’ DWC 25mm bit.
Does any screw gun? There are like 2 standards? The strips and the drums?What really matters, information wise for this thread, is that the Festool screw gun does not use proprietary collated screws,
When I was putting in that ceiling together with my brother, the Festool gun had more issues with cutting out too early than my Bosch. Maybe the Festool has a wider "nose" that with same angle deviation will result in bigger depth changes. Not sure, will have to check. I had used his Festool before I bought my Bosch. He had way more miles on the Festool and after a few minutes he still like my Bosch better. My Bosch is however still that type that runs permanently, so it's noisy as heck.
If the gun was held at an angle and it cut out too early, it was also much harder to correct by holding straight and driving the same screw in at 2nd attempt with the Festool than with the Bosch. But as said before; the Bosch doesn't cut it, it keeps the motor spinning. Only the clutch engages / disengages. So the Festool inherently has less opportunity to overcome static friction cause there is zero rotating mass before the clutch engages. I forgot if the Festool has the option to keep the motor spinning? Bosch replaced the one I have with a newer model with motor-shutoff too but then as user option, so you can still use the 'permanent spin' too.
If I had Festool 18V I would have bought the DWC, but I didn't have anything in Festool 18v so... now I got to experience both brands, hehe.