I'm teaching a class at Heartwood in September on LO and bringing in SU.
The TF Ruby joints don't always look 'right' graphically. Just the nature of the beast.
And, a limitation of SU is that the software can only cut 1 face at a time - so a joint that wraps around a corner (like a T+F) will should only be cutting the bottom face of the rafter, assuming you followed Clark's directions.
FWIW, I only use the TF Rubies to teach, and to extract timber lists. Most of my work is done with annotated bent and wall drawings, as most joinery is the similar, with rules for pegs, tenon thicknesses, etc. I note this for others with callouts. I only detail the complex sticks, and when I do that, I just model what is needed.
But - this only works in a shop setting where everyone can understand the overall bent / wall drawings and do layout properly. If you NEED stick drawings for the shop, you'll have to detail each stick.
In which case, I'd use the Rubies and bring each piece into a LO file to dimension.