HXT900, bad resolution?

I'm building Trex 450 Pro clone and I wanted to use these HXT900 servos on cyclic. As many people say "Can't be beat for the price!", so I decided to buy these.
First, I ordered few of these servos from eBay, they worked fine. (I didn't know about HK store yet).

Then I saw on HK these servos for great price. Product description claims that these servos are original from HexTronik (Taiwan/Japan) and not cheap clones from ebay.
At this point I was worried that my servos from ebay could be cheap clones. That is reason why I wanted to replace these ebay servos with these from HK.

But when I connected these servos to my Turnigy 9X receiver I noticed that movements are not as smooth as they are on ebay servos.
When I try to move stick very slow I can notice that ebay servo turns 2-3 times while servo from HK turns just once. I tried to count movements of both servos and realized that XHT900 from ebay has two times better resolution than this servo from HK. (25 movements on HK servo, 52 movements on ebay servo)
Here is a video that shows this:
http://www.youtube.com/watch?v=M1R4WneEqIU

I also did a test with Arduino, that way I can move servos linearly and enough slow that this problem can be noticed easily.
Here it is:
http://youtu.be/rByDOv2TBa0

I'm worried about quality of these servos :(
Using these servos on cyclic of my Trex450 Pro could be problematic.
Leveling swashplate could be very difficult because servos cannot be adjusted very precisely.

Has anyone else been having similar problems with these servos?

Servo with black arms is from HK, here is the link
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=662

And servo from ebay is one with white gears and white arms. I bought these servos last year, seller don't sell them anymore.

I've already contacted support, still no replay.

Originally posted by mpjf01 Originally posted by FlyDownUnder OMG what has HK done , Hobbyking HXT900 used to be white gears and white arms and had exellent resolution. international warehouse HXT900 are BLACK Australia and the USA, HXT900are WHITE Somebody(moderator) need to put this in the News & Alerts topic to get Anthonys attention and get this sorted out and fixed!!! They are slightly different servos, the AUS model has teflon bushings whereas the INT model has carbon composite.

Yes, but why the difference in resolution and smothness. For many years Hobbykings HXT900 had a very good reputation for quality(resolution), I just hope there not cutting corners just to save two cents.

What to choose now? No more old good cheap HXT900 servos...