On occasion I've worked in a gun shop and sold guns, 'just for the fun of it'. Most of the guys I worked with could spot a Taurus customer coming through the front door by either how he was dressed, his age, his opening remarks, or any combination thereof. (Really!)
On our side of the counter we quietly despised the things; but, 'business as usual' always came first. Contrary to popular internet stories, in a well run gunshop you won't hear anything about a salesman dissuading a customer from one gun to another. Customers are far more likely to walk out of the store with whatever they came in looking for in the first place. (Selling guns ain't like selling annuity life insurance!)
I've got a Ruger SP-101, too. It's not a good little gun; it's a great one, and nearly indestructible! I thought to mention to you that I frequently see SP-101's advertised for sale on the internet; and, the asking prices are usually around half of new retail. (There was one on Glock Talk last week.) If you're used to the Ruger you might want to checkout sites like:
Used, older, blued ordinance steel, S&W revolvers with the original casehardened parts are another option that I see other board members have already put you onto. That's good, too! Another thing you can do when you travel is to contact an FFL in the destination area and have your carry piece shipped and held for final delivery to you upon arrival. This way you avoid the risk and hassle at the airports. Just some thoughts for you to consider.