don't blame you for not wanting to rush it. but i have been waiting for this pipe for 4 weeks. and thats all i like to be abel to test mine. ( don't know how much heaver the stock pipe is to the slimline. don'want the cg to be off). but if you want to look at slimline go to www.slimlinemanufacturing.com. and i am sure thay have one for the zdz. i am puting a us 41 on mine. because that what i hade. if that don't fly it like i like i will pull it off and put something els.