When we see a 3# increase the ILF limb is starting into it's stack and 4# is definately entering the danger zone. These limbs draw very smooth and normaly gain close to 2# per inch if the right length is selected for our draw length. We have become used to a bow stacking at a higher pound per inch than where an ILF limb is stacking, so often it is not recognised without a scale. My understanding on ILF limbs and efficiency is that these limbs are designed so that they perform at their best/optimal efficiency just before they start to stack. The second is by turning in the limb bolt like a compound bow and paying no attention to our draw length.įrom my research on how to set up an ILF bow I have come to see that quite often we have bows that are set for far more pre stress than they should have. We enter the danger zone in 2 ways, the first is by choosing a limb that is too short for our draw length. This system has been developed for Olympic/FITA bows that have longer 23 to 25"+ risers.Recently there is a trend to use it on short risers, ranging from the 20", down to the 14" riser.When we take a limb that was designed for long risers and place it on a short riser the weight increases.The ILF system also allows us to adjust the draw weight even more, and this is where we can get into trouble by over stressing the limbs on short risers. With the popularity of the ILF limbs today on short risers I think there is some misunderstanding on just how to set up the short riser with the ILF limb. My Thoughts on ILF limbs and Short Riser setups.
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