Finally got it set up the way I want it. had to replace the Surefire railed handguard with the standard forend and I removed the Taran Tactical enlarged bolt release button and installed a standard bolt release.
The bolt release button is also the catch that holds the shells in place when you load the tube. The bolt release that was modified with the Taran Tactical bolt release was very stiff to insert shells into the gun. I wonder if it got bent slightly in the installation of the enlarged button. The stock catch makes for easy loading.