Just a quick question here for you folks that make your tenons by hand.

How many use shoulder planes? Do you find them incredibly useful for the task, or do they seem rather daft? Do you prefer to undercut the shoulders with a chisel instead? Or are you perfect and don't need to worry about any of this (I know there are those that can bisect a line perfectly with a saw every time)? Or do you do something else?

My concern stems from my hand-cut tenons seeming to be sub-par to the quality I would like; that being the quality of absolutely no gap between the tenon shoulder and the contact surface around the mortise. The smallest bit of light, to me, is a glaring mistake that makes me want to throw the project out the window. I'd say the biggest gap I see is maybe 1/32"; enough that I can see it, it annoys me, and I think it looks like complete and utter crud.

Thanks, y'all.