Well, the two stand side by side...
I was a little taken back by the sheer size and weight of this grinder.
Eventually I tested out about 6 pulls on the rancilio and finally got into the proper range.
Results: Rancilio is heads and tails better then the Solis.
The grind kinda looked the same but the results were different.
The final taste of 1.5oz shot from rancilio was not bitter at all, much thicker flow, ie .slower, texture as well.
I now understand the difference between a "get me by" grinder and a really good one.
Thx for info. all