I heartily echo magicnz's statement.
Much as I appreciate the game I'm close to quitting because of the extreme inconsistency of the meter, particularly during those hours the site is well populated.
Notwithstanding the amount of Calloways (ergo money) that I've lost as a result of meter-stuttering, meter-rocketing or meter-halting, it's frustrating to the extreme when one has invested so much time in achieving a great score to have it all suddenly blown away by a factor over which one has absolutely no control. The erratic meter-behaviour condemns this game to be one of chance rather than one of skill.
I'm not a computer or cyber techie, and maybe there's no quick fix for this glaring handicap, but I suspect that it may be that your server power has fallen behind your rapid growth.
I play every day and chat with other players. Just be aware that there are many, many other paying customers who, like myself, are on the brink of waving goodbye. Please, please, don't spoil the ship for a ha'pworth of tar..and get this issue fixed.