1) When building a box call, I understand the importance of wall thickness in producing the 2-tone Eeeyawk of the yelp. However, I do not understand how to moderate clear vs. raspy. The few descriptions I've read sound like this is more luck than anything else. Besides the materials selected for the box and lid, are there good ways to achieve a given tonal quality?
2) Ends and bases: On solid calls is there a functional reason for a bottom base or an end block that goes beyond the esthetics of the call? Is there a functional reason for the bottom base to be of some dissimilar wood, or not just notched from the box itself?
3) Every box call seems to have a radius at the top so that the paddle only contacts minimally on the top surface, but could not find any discussions of what radius to use, or what radius moderates. What radius should I use to start? Is there any magic in having a symmetrical radius versus asymmetrical?
4) Flat versus tapered sides: Is this difference aesthetic or is there a functional reason?
5) Bottom handles: Is there a reason to put a handle on the bottom call?
6) Are there any special considerations in making a long box type call?
7) The top lid/paddle/whatever is always radiused, and the lid is usually around the same size as the opening of the box. Is there any special rules regarding the lid's radius, thickness, or other dimensions or is this a matter of taste?
8) Glue: what is the best glue to use?
My box call inventory goes back to a Quaker Boy that Dick Kirby put in my hand back in the early 80's. I grabbed representative sample of them this morning and started in with a ruler and caliper determined to figure out what dimensions were ideal. I quickly discovered something: they were all basically the same call. All but one was within 1/4 " of 7.75" long and all had about 1/4" difference in the top radius going from the end to the middle. One had perpendicular sides, but all had nearly the same opening, regardless of the angle. Solid, glue-up, cheap, expensive, one-off customs, and production models-- it was all the same call! Was that just me or what? Who came up with that design originally?
BTW: I got the cedar cut into 2X2X24 blanks.