I started call making making box calls, killed a turkey with probably the 5th call I made and have been hooked on them ever since. I have made around two hundred calls since then and am finally now getting that "killer" sound out of them, no matter what kind of call you make there is a progression.
As far as tone boards, I became interested in predator calls and started making them, learned how to make a tone board, how to get range of sound and volume. This I think really opened the door for me to begin making duck call inserts which have to be "right" as you can't play them like an open reed predator call! (unless you take them out of the barrel
) Having some experience with how everything affects everything else in making predator calls, helped me in the attempt to figure out duck call inserts and I am still learning! The slightest change can make a huge difference!
I guess my advice,which I don't give out very often, is to make whatever kind of call intrigues you the most. As you make calls you will become more proficient at using them, so don't let that become a stumbling block for you. You can always buy DVD's to improve your calling skills or get some help from a hunting buddy. It takes dogged determination to get you through some of the frustrations encountered when trying something new, but when you do succeed, believe me it is all worth it, even though you will have much less hair!
Dave