Sorry about that. I will update our instructions to be more clear about this.
The hole that is closest to the solid part of the bar are going to be the most stiff setting. The further you get from the solid portion of the bar the more flex is allowed. Hope this helps. if not you can email me at aldo@lsrperformance and that should get to me quicker than a pm. sorry i answered late on this.
No professional installation is needed. You can do this on jack stands. It will take longer is all. Still should be no problem for the do it yourself person. If you have any questions shoot me a call at the number below.
I'm actually going to start selling these in quantities. The website http://www.triaxdriveline.com/ my website is http://www.steedamanufacturing.com/
I don't have them up yet, but for around $150. you get a %20-30 reduction in throw ( depending on the height and the handle you use ). height adjust ability of up to 3/4 of an inch lower than stock, in 1/4 inch increments. You get all the positive feel from the $300-400 shifters from just my lever. Quality is no problem as I'm a ISO 9001-2000 manufacture. I make the Steeda tri ax shifters for Steeda auto sports. This handle will be an economy shifter. I saw on your website that you sell Steeda billet strut brace. thats another item That we manufacture for Steeda auto sports. You can call me at 954-718-6500 ask for Aldo. I hope to hear back from ya.