You sound younger than me Tegwin, but I have been in and out of SEP flying for quite a number of years now, each time I go back, find a friendly instructor(not always easy) do some circuits , some stalls , pfls etc and then a skills test .I actually enjoy doing the training bit but its quite uncanny how quickly it all comes back even after a layoff of two years.Now being NPPL the medical business is much easier, that of course won't apply to you if you are going pro.But certainly picking up the tricks again is not too taxing.