Default [Q] 3G on Droid 3 in the UK

Until recently, I'd been using a Milestone running CyanogenMod 7.2 RC1 which worked flawlessly on Giffgaff in the UK. My Speedtest results ranged between 100-150 ms for ping and 0.5-3.5 Mbps for download speed. The status bar always showed 3-4 bars out of 4 possible while the signal was regularly recorded between [-100] - [-85] dB. In short, my data connection was stable.

After a few month contemplating, I finally got an unlocked Droid 3. I went ahead to root it and install Steed Droid 4.5 on it. Even though the Speedtest results are pretty much the same, I felt that my data connection is more sluggish than before. The signal ranged between [-115] - [-100] dB; there were only 1-3 bars out of 5 possible on the notification bar and the connection was randomly cut off. These setbacks happened even after I applied a few tweaks to build.prop.

And I came across this thread, I decided to give it and followed RWALEY's instruction to flash a XT862 5.6.890 ROM using the newest baseband from XT883. Then I installed Steel Droid 4.5 and applied the GSM fix from the instruction above. Unfortunately, the modification doesn't any noticeable improvement.

Sorry for my rants but I want to ask you guys here if this mode gives you full signal bar and strong and connection in the US? For any user outside the US, do you see any improvement from this modification?

Cheers.