Speck Calls

[C-Bass2mouth]

I've had a RCC poly for about a year now and really like it (first year speck hunting). I've progressed a lot, and am in the market for a higher end call now also. I've heard there isn't much difference in the poly and acrylic RCC's as far as guts go? Is it worth the money or should I stick to my Poly for another season? Or would it be a bad move to try a whole different brand / call since all I've ever known and learned on was this RCC?