Okay, called and raised, huh? Well, I guess I have to offer a tip!!!
As far as I'm concerned, if you are new to calling any cat, you should start with electronic, and there is only one reason. It is so you can avoid detection while you scan for your animal. Cats move slow and then you never know when they will just start walking in like they haven't a care in the world. They are often spotted just watching things from the edge of cover, so you can't depend on seeing movement.
So, as I said, my advice would be to use a machine. And, the best sounds to get a bobcat to approach close enough to see him are high pitched sounds like Yellow Hammmer woodpecker or Flicker, basically any bird sound. I have very good luck with rodent (rat) sounds, which is actually a big secret, so don't forget where you heard it. If you don't have any of those, by all means try a cottontail, they respond to that sound, for sure. Other sounds that work for me are puppy distress and kitten distress, and chicken sounds.
Before I forget, volume is important. You can crank 'er up initially, but after the first minute or two, he has already heard you, and now it is better to turn the volume down while he is making up his mind. Two out of three cats won't respond right away, they just need a little time to process the information. Having seen a number of cats approach from considerable distance, it is my belief that they take their time deciding, and once they do, the approach is fairly direct. All the slowing down, bush to bush, happens when they are already relatively close. Boy, if you are hand calling right at this point, you had better have your good camo, 'cause he knows exactly where you are, and you better not move. Now, how is a beginner supposed to spot an incoming cat under these conditions, right? This is one of the best arguments for at least getting a few under your belt with a machine, before you try it hand calling. It can be done, sure, but it's a whole lot easier when you already know what to expect, and all the typing in the world doesn't prepare you for the real world.
Part of the reason why the advice is that you make longer stands for bobcat than for coyotes, is that it just takes longer to pick them out of the clutter. They might actually BE there, but it takes time to spot them, depending on the terrain. They won't leave right away, like a coyote, so if he is pussyfooting around, you might not be aware of him for a considerable period of time. It is often a game of patience, there will be times when you won't see the cat until you stand up and scan the area one last time. Again, unlike a coyote, a bobcat never seems to be in a hurry, even when he is leaving in a hurry. Get back down into position, and lip squeak him for a shot. I hate to say it, but when you know the habits of bobcat, it's almost never too late. I've taken a good number of bobcat that were wise, and going away, but couldn't resist another look.
Right now, you know about all you need to do the job, now go get him, and be sure and tell us about it, hear?
Good hunting. LB