I am a happy and proud owner of a vectrix xl. Its sweet, their not 80% let off, its 65 or 75. can adjust it by moving the set pin on the bottom cam. Trykons had 80% let off cams with a second cam option for 65. i have 1 of those too... its also sweet..... I have done some tinkering with both bows, On the vectrix, the bar with the the rubber stopper on it, i moved it in and out, it was intersting how touchy it was to the amount of noise it makes, I took a piece of typing paper and tor it into a narrow strip, put it around the string, moved the stop back so it just touches the paper, and tightend it up, its the perfict setting for quietness on my bow. Other things i did to both my trykon and vectrix xl, served the top yoke on the cable togeter, and twisted 1 side acordingly to get rid of any cam lean,(axel to axel on both side is identical) I then select the draw stop to where i wanted it, 65 or 75 let off, and twisted the cable that attaches to the bottom cable till the stop on the bottom cam and the stop on the top cam, touch the string at the same time, at full draw, then i set to desired draw weight, (61) then i twisted the sting, or un twisted it, till the bottom limb was very close on center with the 2 timing lines on the bottom cam. as you adjust the draw weight, this will change a little, its fine as long as its in between the marks though, dosent need to be dead center. Most of this is my own adjustments, cause thats the way i want it, it made a great wall, and it shoots sweet, smooth quiet. and super forgiving. Most of this pry dosent need to be done, but its the way i am.....
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