I use it alot,
Like the instryctions say, it only takes a few drops behind ach brush.
I does mean that you need to maintain the comm and brush face a litle more.
I just use a comm stick between heats, and occassionally a comm cut between heats and finals.
A noticable increase though. one of the better ones though
Xray T2 09 (still) - LRP - MuchMore - Futaba 3PK (still)