With a 50 ohm output load, you can trim Id around 35 mA or so and sweep right through 50 ohms. I have a graph somewhere, based on low-level TDR measurement. ERA-type parts can also be tuned with Id, but more around 30 ohms.
It does suffer a little from wirebond inductance and gbw rolloff towards the high end, but a little RC to ground helps that a lot.
John