Hi John,Thanks for this review.
I received my Big Bird Trigger Shoe last week, I shoot an R-10 and really agree with Riflenut, this allows me significantly more trigger control. This device makes it easier to use the tip of my finger on the trigger and makes the trigger surface little wider. Similar to percission shooting with a pistol, trigger finger placement will cause a shooter to push or pull a shot right or left. The Trigger Shoe helps mitigate that with the Ravin. Anything that improves my accuracy is a worthy investment for me. Great Job Big Bird 1!! Thank you!