I am new to game call turning but have turn pens for about a year. So I have a few questions. 1) How is the best way to sand down in the groves with out removing some of the beads? 2) What type of wood for a deer grunt call? I have some nice Walnut and Olivewood. Is there a better choice.3) What is the best finish, since it is in contact with the mouth should it be a food safe finish? 4) What are the sanding steps? I go to 220 and then use Triple E to polish my pens but thought I would only use sand paper with an oil finish because of the mouth contact. I would appreciate any advice.