How much can you ‘track’ at 100m?
It obviously depends how far apart you have the legs set on the rifle stock...the closer together the wider the tracking distance...
The offset of yoke to pivot is around 50mm, so from extreme left to right you have 100mm. With the yokes 1000mm apart tracking would be 10 metres. With the yokes 500mm apart on the rifle it would be 20metres @100m. Yoke distance is around 500mm on the rifles I have used with them...Daystate XLR, Airarms S410 FAC Extra, R8 Pro Success and Finnfire P94s.
But it is the control of the tracking rather than distance I find is the important thing...I have only needed to use a metre or two of the available, which has meant I have not had to reposition the legs of the sticks.
The two advantages of the revolving front piece over the flat support of the Viper type I think, is that tracking is done with no change of grip or hold on either rifle or quad stick rest, and the rifle is less easily canted.
I have the sling gripped between fore and middle finger under constant tension, and with no change of grip can track with just a slight wrist movement.
You can coarse track by taking the weight off one leg and pivoting it on the other, just like any other quad sticks. With the Blaser sticks, again you can control this with your forward hand without having to alter your grip...but it is the fine windage tuning that is such an advantage over the others.
With other sticks I did find it a temptation to cant the rifle to make the slight windage adjustments. With Vee stick tops that meant some stress being applied to the stock which is fighting with the natural point of aim.
Alan