Thanks hugger,

I've been thinking about to buy a Tach for a long time, but every time I wanna buy it something else comes along. It's in my list to buy one

Thanks for the suggestion and you are right, with the right rpm, I can better setup my motor. Lately temperature has gone down a lot in TX and it's also making motors gone cranky on top of that this weekend we have 40% and 60% more of less chances of showers and thunder. Let's see if I can squeeze few hours of flying before it showers.