Since you haven't done SS for years, you will be detrained. Part of that loss of strength will be neuromuscular detraining and you can get this back without adding bulk. So, yes, you should start up SS again with a basic NLP. No need to micro load from the start. If you aren't eating well and doing other activity (biking) that will bring the progress to a slow on its own. Given this, I would run the program out as much as you can and just monitor your weight and performance.