By Linda Howard & Joseph Wilkes New data from the Department for Work and Pensions (DWP) reveals that 3.5 million people across Great Britain, including nearly 219,000 in Scotland, are now claiming Personal Independence Payment (PIP). This is the highest number of people ever to receive this disability benefit. However, this total doesn’t include the 109,385 Scots who have switched from PIP to Adult Disability Payment (ADP). But, those applying for PIP for the first time might not know that the length of a successful award can vary. The shortest award lasts nine months, while the longest is an…