Artificial rams are a definite and resounding NO. However, using the earth around to create angulations leading to the basket that could put the perfect roll into the chains is a cool idea. As stated before, hole 3 at N.E. Lions in Norman has a perfect slope up towards the basket that will shoot a perfectly thrown roller at the basket, and really this is the only way I can see an ace happening on this hole; there's just not another direct way to get chains height coming out of the valley. To get a throw to the basket you have to stay low and out of the trees and, unless you were to get some kind of unlikely skip, the only way to get back uphill and chains height is to ramp up off the hill that leads back up to the basket.