I think so :-)    They haven't arrived back yet and I didn't use the panellisation feature as that incurs an engineering charge but instead I duplicate the schematic and layout several times, then create a line of solid regions and set them to NPTH.   I also did a line of drill holes in one place to see if that gives better or worse results.  I got the whole project on one 100x100 board. 

@MikeDB How did it turn out? I need to do an order but also want to avoid the penalization charges.

@georgeeden365 Hello Create manually your PCB panel and do not use V-cut lines, instead you can use stamp holes to separate the duplicated design. BUT even for the stamp holes there will be some (smaller) charge because the more you add holes to your design the more expensive it get. Here is what it is mentioned in JLCPCB "charge of extra costs" related to drilling : > Basically, there is no extra cost for drilling the holes, but there is an exception that if the drilling holes are too many (more than 1000), it will take a very long time to drill them, and since they are dense, the drill bits will break easily also, so there will be an extra cost for it. Have you tried to compare the cost of your design following the V-cut line method with the other options?

@georgeeden365 It was fine - they didn't charge me extra back then but I believe they do now