Doug, I have shotguns with choke tubes but seldom change then. If you would actually use them then the expence might be worth it. For me I don't think it would be. DM seems to like fiddeling with his drilling, changing tubes, insert barrels, etc. I prefer to just have it set up and hunt with it the way it is. So I would just open the chokes or buy spreader loads............But thats just me.
Regards,