Okay this is a DC vs DCC thread but with a twist. I am an ardent analog DC guy. There are several good reasons for that but basically it comes down to a cost to benefit equation. However, I just noticed on the BLW website that a company called TCS has come out with drop in decoders for just about all my older locomotives. These decoders apparently require no frame milling or any other major changes to the locomotive. Now, I'm thinking that cost to benefit equation may have changed somewhat. So I got some questions. First, does anyone have any experience with these decoders? If so, how good are they? Price is still an issue at about $30 per decoder plus the base costs because I like to run ABBA consists and I got a bunch of them so were looking at about $120 per consist just for decoders. For someone who squeaks when they walk and is cheap to boot, that's a lot! But that is not to say that I expect to find these things in my favorite dollar store. So some feedback from anyone who has used or is using these decoders will be appreciated.