Coolbox, thanks for answering my question, I now see that CZ Custom sells small frame guns with TS uppers, so the hammer to breech dimension must be the same. I shot a TS for the first time last Thursday at my first steel match and loved it! During a break between stages I saw it at the rental counter and had to try; I threw it into a revolver slide holster I had in my bag and proceeded to shoot all six plates in just over six seconds. I know some people don't care for the extra weight of the full frame rail, but I think it adds to what I like about it. I have two small frame guns (transitional Tanfoglio and Uzi Eagle) and two large frame guns (Witness and 97B), so I'm happy with the grip size (I have big hands).
I really appreciate your comment because it helped me to solidify my plans; on Monday I'm going to order a 9mm TS and have the .40 upper fit to it. It will be a great opportunity for me to get my hands on an extra longslide, since CZ doesn't sell them alone. For me, the tinkering is part of the fun, I don't image this will be my last buy by any stretch of the imagination...
Does the standard frame have long enough flats to mount optics? I would think an SP01 frame might be a better choice for a small frame longslide?