Synoptic Questions in the new Linear A-level - some excellent past papers
The new linear A level has synoptic questions that will test knowledge and understanding from both years in the same question. Often with looking at experimental data.
The old OCR 2806 - Unifying Concepts papers are an excellent resource to develop skills with these style of question.
I have uploaded several papers to my past paper page - have a look and let me know if you think they are of use.