Nat X said:
Try them both yourself. I got the 500 because I only needed the smaller cutters and the extra expense made no sense to me at the time, but I absolutely hated using the thing because the switch pinched my thumb constantly and it was so light it danced around on the workpiece whenever it was turned on. Also didn't care for the paddle stops or the fact that the mortise width could only be adjusted while it was running, so I wound up switching. I'd never buy another 500.
Switch pinched your thumb? Never happened to me, I have worked that switch thousands of times... [blink] I just don't get how you managed to repeatedly pinch your thumb. [eek]
Yes, the DF500 is light and in vertical position it tends to wander if left unchecked. You are not supposed to turn it on and leave it running. It is a matter of proper technique and it helps using the extra support for verticals. I have only missed the target marginally on just a few (as in three or four) out of literally hundreds of vertical plunges on scribbled marks on different shaped objects.
Don't like the paddles? Are you referring to the flip out stops? They work great. I have had the old metal pin stops and the plastic stops. Both work as intended. The extra outrigger stops I don't like.
You CAN switch the mortise size when the machine is not running, but only one way. To me that is not a problem - I would be more annoyed if it was easily knocked out of position when the machine was OFF. I do think the widest setting is unnecessary though. I actually prefer having to have the machine ON when selecting mortise width since that makes it a deliberate choice instead of "oh - I forgot to check the width again".
I immediately grew accustomed to changing it back once I was done with a wider setting (not that it matters much as I can toggle from wider to normal when my Domino is switched off, but still).
When I am working the Domino I can be in the zone and work some projects with hardly making any marks, it is a fantastic tool and very accurate once you get your workflow up and running with it.
I think I would get the hang of the XL in a blink, seems very well thought out.