I doubt 2juki actually alters serial numbers - what would be his purpose in doing this?
More likely is the local distributor keeps track of serials coming through his distribution chain and can therefore identify serials from other sources. In both cases the item is genuine, but I can see why a local distributor would refuse warranty service. I think most people buying grey market product realize this and weigh it against the often considerably cheaper price.
FWIW I’ve bought from 2juki several times and have always had prompt service and no issues.
When I got my ART9 2juki was closed for the new year and I bought from Thakker - also without issue - and saved $500 on the local price.
More likely is the local distributor keeps track of serials coming through his distribution chain and can therefore identify serials from other sources. In both cases the item is genuine, but I can see why a local distributor would refuse warranty service. I think most people buying grey market product realize this and weigh it against the often considerably cheaper price.
FWIW I’ve bought from 2juki several times and have always had prompt service and no issues.
When I got my ART9 2juki was closed for the new year and I bought from Thakker - also without issue - and saved $500 on the local price.