^Had that exact problem. But being as how I was using the 3xLEDs, I couldn't grind down the top bulb because it's just too small.
Also, if I had tried to grind down the side with the leads on the 3xLED, then the regulating circuitry on the LED PCB would collide with the plastic socket walls, and you wouldn't be able to insert it any further regardless = no gained clearance.
Sadly, the top bulb on my 3xLED died. However, it didn't illuminate the lighter ring that much more than the two sides anyway. If anything, I'm glad it died because despite the ring being dimmer overall, the bright spot from the top LED is gone. So, it's dimmer but more uniform than before. Problem seems to have been a boon.
