i hunt with a 20 ga shotgun and im looking for a really good choke. my gun patterns pretty well just a regular rem turkey super full and hevishot out to forty yards, but im looking to extend that. i have heard good things about the pure gold choke tubes and i read something on a post here about the swarm turkey choke. can anyone tell me abouteither of these two chokes? or if you recommend another choke? any info would be awesome! thanks guys!