HI JIM, ON THE DEWALT IF YOU HAVE THE EASY LIFT ATTECHED, SOMETIMES ,AND MAYBE ALOT ,DEPENDING ON THE SPRING PRESSURE HOLDING THE ARM UP AFTER YOU CHANGE THE BLADE AND NOT LETTING THE ARM COMPLETELY DOWN .EVEN JUST A CENTIMETER UP WILL CHANGE YOUR BLADE TENTION KNOB NUMBERS HIGHER .I;VE HAD MY MACHINE APART SO MANY TIMES AND PROBABLY STRECHED THS SPRING ON THE EASY LIFT A BIT.I ALLWAYS HOLD DOWN ON THE ARM TO GET THE MAXIMUM THE ARM WILL GO TO KEEP THE NUMBERS DOWN ON THE TENTION KNOB WHEN REINSETING THE BLADE.WITH THE LIFTER YOU WON'T HAVE THAT PROBLEM.THE EASY LIFT IS A GREAT TOOL AND WORKS PERFECT,BUT I FIND GETTING THE SAME TENSION EVERTIME TO GET THE LOW NUMBERS IS INCONSISTANT.TO REMIDY THIS I HOLD DOWN ON THE ARM AND TIGHTEN THE BLADE.DONT BE SCARED THESE LITTLE INCONSISTANCES THAT WILL AFFECT THE NUMBERS {1}.BLADE SLIPPAGE,{2}NOT HAVING THE ARM COMPLETELY DOWN,{3}NOT HAVING THE TENTION KNOB COMPLETELY OFF WHEN REINSERTING THE BLADE,{4}SLOPPYNESS IN THE BEARINGS SOMEWHERE.THESE ARE ALL I CAN THINK OF FOR THE MOMENT.I PROBABLY SHOULD'NT HAVE SAID ANYTHING WITH OUT REALIZING ALL THE VARIANCES THAT COULD CONTRIBUTEE TO THE HIGH NUMBERS,SORRY DON'T WORRY THEY MAKE THEM EVERYDAY,LOL