An update on my experience with Uhles #300 two years later....
So I kinda got tired of this blend after awhile and jarred up most of the pound in May of 2013. The tongue bite has minimized itself after extensive drying, but I still felt like I wasn't getting enough out of this stuff to continue smoking it.
A few weeks ago, I decided to open a jar and smoke some. Traditionally, the common thought with burleys are that they do not age. While this may be true, I have found that 2 years in the jars really softened this stuff quite a bit and the honey topping dropped off dramatically. What is left now is a very good old fashioned cubed Burley smoke that has almost no tongue bite whatsoever, and only a whisper of the honey topping. I have smoking this in small and large pipes alike, with great results all around. #300 works great in cobs (Burley's favorite pipe IMO), and also seems to smoke well in my larger Estella 115 EX without any hint of bitterness towards the bottom half of the bowl.
#300 will never be an everyday smoke for me, nor will it be part of the weekly rotation. However, it is a good honest smoke now after two years in the jar, and it certainly works as a crowd pleaser around non-smokers, as the aroma is quite pleasant.
Cheers,
Scott