"Grip of Death"

I have the 925 on Tmo US. I tried to duplicate the test in the video using a fairly strong LTE signal (3 bars). Here is what I found:

  • Holding the phone in the palm of my hand and elevating it 6 inches, I would lose a bar.
  • Holding the phone in the palm of my hand and lowering it 6 inches, I would gain that bar back. This is what I would consider to be normal signal fluctuations.
  • If I held the phone steady in one spot (at 3 LTE bars) and waited a moment to make sure that there was no normal fluctuation, I could cause the phone to lose one bar of signal only if i took both of my hands and completely covered all four edges of the phone -- a totally unnatural grip that I would never use under normal circumstances. Utilizing this uncomfortable and unusable handhold, I could consistently reproduce the reduction in signal over and over. I tried various other hand holds using just one hand, including my natural phone call grip, and was not able cause a reduction in signal even one time.

Totally non-scientific, but there you go...
 
I don't understand the innerworkings or reception, so excuse the question, bit would the design of the phone pick up LTE differently than for 3G and 4G? I don't get LTE signal where I'm at. Basically I'm wondering if "death grip" would only affect people in non-LTE areas.
 
I've had my L925 from Vodafone UK for the last 2 months and never had such problem, I do get weak signal (1 bar) in one specific room but then again all other people living in the house get the same problem and we all having different phones. (iPhone 4 & 5, HTC Desire, Lumia 925, Samsung Galaxy S3)
 
I returned this device because of losing signal in areas where both iPhone and SGS 3 showed maximum HDSPA+ signal strength (!!!).
4/5 phone calls were dropped, terrible. I advice not to buy this phone, maybe some batches are totally flawed, maybe the whole design of antenna system is wrong.