Seriously, get a quality glass or slate call first. I use diaphragms A TON. Probably 80% of my calling is done with one, but a glass or slate call is much easier to learn, and get consistent at three basic calls which kill turkeys: yelp, cluck and purr. Unless you are a freak of nature, you WILL NOT be able to consistently make those notes in the few months you have to practice. Not saying you can't kill a turkey with bad diaphragm calling, because there are days a turkey just seems to want to die, but I am saying your odds will go up considerably if you learn to consistently make a yelp, cluck and purr. Those aren't the only calls you'll eventually want to learn, but they'll kill the majority of callable turkeys, and you have plenty of time to learn to use one. Go ahead and pick up a diaphragm or two when you buy the friction call, but do as Steven say and spend all the time you can with that sucker in your mouth. Even after you think you sound like Walter Parrot in the car, be cautious about trying it in the woods. A friction call somehow still seems workable when adrenaline flows, but a diaphragm is a whole different deal. Good chance your mouth will go dry and you'll be breathing heavy, and neither of those are very good for calling. Finally, I don't really hold with the idea of the movement issue with friction hcalls. Unless you are set up blind-calling and a bird sneaks in unseen, it just isn't an issue, and even that isn't an issue if you address it when setting up. See, you generally shouldn't be calling at all once a bird is visible. Unless your setup is perfect, you have decoys and the turkey is very naïve, he'll pick you out even with a diaphragm. They can tell exactly where the calling is coming from, so you better either look like a hen turkey or be very invisible, and camo does not make you invisible to a turkey. Final point on that, If you call when a turkey is in view, he's going to expect a hen to be standing and visible where that sound is coming from. A high percentage of turkeys will just walk away if they don't see a hen where they should. Then again, you might just luck into a turkey on his death day and kill him despite doing everything wrong. It happens that way just every so often.