My recommendation is to keep the GooseZilla and purchase a instructional CD or DVD and learn the basics of calling before going out and spending the money on a high end acrylic call. Think of it as learning to ride a bike. You can learn on any old bike then move up to a performance bike when you are ready. If you haven't blown a short reed in the past and you move up to a high end call. Your still gonna sound likea peacockbut louder and crisper. You might impress your hunting buddies that you ahev a hundred dollar call on your neck until they ask you to blow it.[:-]
In my opinion, the GooseZilla is the best call out there for the price. I blow one alot, probably more then I do any of my acrylics. They have a real goosey sound on the low end but can also get loud, fast,and high pitched with some tuning. Both acrylic calls and poly calls are going to sound the same the only diffrence is volume and crispness. If I was to walk away 30 ayrds and blow both of them you couldn't tell the diffrence.
Your GooseZilla is right where you need to be.