THANKS EVERYONE FOR YOUR HELP AND ANSWERS REGUARDING THE PAR END FEDS. I WAS TOLD BY PAR TO NOT USE A TUNER,JUST TO TRIM THE EXCESS. IF ANYONE HAS AN EXPERENCE USING A TUNER WITH ONE OF THE ENDFEDS,ID LIKE TO KNOW YOUR RESULTS. THIS IS AT A 5 WATT LEVEL I WILL BE USING. HAS ANYONE TUNED ONE WITH A TUNER USING 100WATTS? THANKS CHUCK PRIDGEN,N4UED