If 'ScaleFinal' is not working for you and you want to fit whole Sequence to Adaptive mode I usually use one trick to nest Sequence to act as one segment.
You can use two approaches:
1. Expose X size for each segment and Sum of those values use as X size of the Linear Generator (blue workflow),
2. Set X size for Generator to some large value and to add NULL (empty) segment at the end of Sequence to terminate sequencing (green workflow)
The Green Workflow is better because if you change Counter for individual Sequence input you should think about adding a new wire to the Arithmetic operator to get correct X Size..
Check the attached scene file.
Hope this will help, please let me know if we can help some more.
p.s. added adaptive2 file with `green workflow` only