Sort of. The Joseph Kuosac cassette could not be made to shift and it appears the ramps on the cassette are not quite good enough. So I currently have a 10 speed ultegra 11-28 with a standard Shimano free hub and a 105 derailleur with a 56T chainring, tiagra shifter (4600). The crankset was rotated and the chainring is no longer slightly wobbly. It shifts very nicely indeed and it is a pleasure to ride. However, I have lost the gain ratio I was looking for by running a 9-28 capreo cassette with a 56T chainring. In fact the current max gain ratio is the same as when I had a standard Capreo group set.

I was thinking of making a frankencassette with a capreo free hub and the first three 10 speed steel cogs from the Joseph Kuosac and then running the rest from the ultegra cassette. this would be 9,10,11 then 14-28. However, plan to commute for a bit longer and see how I go. Might just pedal faster.