Rob,
I do not have a Tamer 20 or 410 bore, but I do have a 20 ga. Shorty, My is based off a Youth model with the screw in chokes tubes. It has a walnut TDC (Topper Deluxe Classic) rear stock and a walnut TJC (Topper Junior Classic) forearm. I mainly hunt rabbits and I do have a 20 guage TDC, but handling the dogs, leads and the brush, it just was not working out. It's to long and to heavy. That is why I purchased the youth model and fitted it with the stocks. The wife has a TDC with the TJC youth stock on it and she figged out today that she needed a shorty, so after the Holidays her TDC will be going to the factory to get fitted with a youth model barrel with the srew in chokes. I have a .410 bore pardern with 26" barrel and my son has a .410/.22 rimfire versel pack. We can not get them to pattern good. These .410 bores need work IMHO. I will probably sell, trade or have the full chokes removed from these .410 bores before they will shot correctly. I'm including a picture of my Shorty, It maybe something you maybe interested in building, I enjoy my and it works for me. Alot of guys have Shorties because they are very easy to carry and versatile.
Good Luck!
V/r
Froghunter
PS: Cookie, looking good, I think this is the first time I seen a picture of her and she looks sweet.