diff --git a/Console-Logs.md b/Console-Logs.md
index 4ed2321..c040ef7 100644
--- a/Console-Logs.md
+++ b/Console-Logs.md
@@ -15,7 +15,9 @@ explorers, etc) to provide a more complete picture of actual mining performance.
 The descriptions below will help understanding the significance of each field and how it can be used
 to assess mining performance, help identify problems and aid troubleshooting. 
 
-For users not interested in details the --quiet option can be used.
+Raw data is either provided by the server or by measured observations (ie time). All estimates and performance measuremnents are believed to be statisitcally accurate, however no formal statistical proof has been done.
+
+For users not interested in details the --quiet option can be used to suppress many of them.
 
 ### Colours
 
@@ -130,7 +132,7 @@ Line 3:
 * TTF, an abbeviation for Time To Find, an estimate of the average time required to find either a block or a share for a given hash rate.
 * Reference hash rate of the miner, this is the traditional hash rate displayed by most miners. It is
 calculated by counting the nonces hashed over time. It should be statistically equal to the sum of the
-effective hash rate and lost hash rate. 
+effective hash rate and lost hash rate. The reference hash rate is used to calculate TTF.
 * Block TTF estimate calculated from miner's reference hash rate and network difficulty.
 * Share TTF estimate calculated from miner's reference hash rate and target difficulty.