I don't see how it could hurt them. The charger is pretty popular bow for the price. As long if the quality is the same its a good move on there part. Every bow company needs a bow that's affordable for most everyone.
Yes I shot both. I wouldn't say enough to give a full legitament review but I thought the charger was a little bit harder on the beginning of draw cycle. and the spyder is a little (very little) bit spongy at the backwall. I ended up buying an elite answer but Both bows are very nice