Hi - from New Zealand - 1st post.
I bought the XQ38 1 month ago.
I was going to buy the Core FXD50 front attach and mono.
I found a 2nd hand (only 2 months old) Pulsar Apex XD50 - so I went off the Core and because I had already paid a sizable deposit to our importer of Pulsar equipment, bought the XQ38.
I had the XQ38 a week before the XD50 arrived - once that arrived I got disappointed with my XQ38.
The XD50 is so much clearer that the XQ38.
I put it down to the fact that the XQ38 starts on a 3.1 magnification which was making the image/objects less accurate.