I have read the owners manual and tried to follow post on this web site but still not completely clear on when to use T/H.. I have a 5er 10k 30ft. Am I incorrect in pullin in T/h until I am up to speed on the hwy then,if am traveling on a mostly flat road (ie ohio,indiana ill ect) I set the trans back to regular hit cruise and enjoy the ride?? or am I suppose to leave T/H all the time I am pulling?? I Have not pulled since adding juice and have every intention to set T/H lvl1 regular trans lvl2. does this sound prudent to presereve allison?? Thanks in advance..