Nice graph!
I wouldn't say the bg trickles around 80, but rather bottoms out around 80 (for the mean value). It's real nice to see what happens after meals. Also nice to see that the range can go as low as 60 (the value I treat at usually) and can go as high as 150 or 160 after a meal. Looks like bg should return to normal after about 3 1/2 hours of eating...