Well just minute before you do it.
I just opened mine up and it does not have the same guts as the one in the picture in the magazine. There are no jumpers in mine to cut. In all of those jumper spots they show, even the row of about 6 jumpers you see in the pic.
Mine has got resistors in it. So alesis has changed the unit somewhere along the way.
I only bought my 2 about a year ago so they are fairly new, But I have never had any problems with mine doing nasty things but I will admit I dont and have never used the gates.
Also if you want to find out which one you have dont take the front cover off till you take the back off and look up inside and see if you have one with the jumpers or with a bunch of resistors in there.
Good luck with you unit.