Hi Dave, sorry for the delay in replying, have had hospital visits for the last 3 month for my Sister so gets a bit weary, but you know better than me.
I use the 'Mr CementS' for as much of the plastic joints as I can. I use the Rocket for photo etch including the handrails. For the handrails I 'butter' about 30mm of the plastic and fix the first bit of handrail, hold it until it's dry, then 'butter' the next bit whilst gently bending the handrail way, then I hold the handrail over the new glued section until it's set. Repeat as necessary. For small handrail sections, say around platforms, I shape the handrail, so that there is no spring in it, and 'butter' the whole length and drop it onto its position.
The gel ca does have a slight smell, but I use this for fixing items onto painted surfaces.
Hope this answers your query, but come back to me if not. Cheers Derek