Thanks for your Feedback.
For some customer orders, when we do our audit, we look to see if there are any opportunity's to make the manufacturing process simpler.
In this case we asked if it was possible to use 0.3mm Vias and 6mil track. We can make .25mm and 5mil track, but it is more expensive and more complex, and we wanted to provide this feedback to you.
Please accept our apology for any inconvience this has caused.
We are constantly updating both our service and fabrication capability. We have very recently taken delivery of a new NC drill machine from Taiwan, it arrived yesterday.
The engineers are installing, configuring and calibrating it this week.
As for price, different companies have different prices. Some times our price may be higher, but mostly our price is better. All of our services include quick manufacture for expidited service, this often is an expensive add on with other PCB fabricators. I hope that this helps you understand
Best regards,
Erin