creating a small space between the blocks and the blade is a good idea,IF, your saw has them. Your saw uses roller bearings, On my saw that also has rollers, I adjust the bearings so they just make minimal contact with the blade. I find this way of adjusting them allows for no drift and keeps the saw tracking true. When I had a craftsman saw, I still adjusted the blocks , which were called "cool blocks " as they were a different composition that the micarta blocks that came with the saw. The main reason for having the gap between the blade and the blocks is to keep the friction from the blocks touching the blade is to reduce heat which will cause early blade failure.
However, your saw has rollers so different rules apply
Don't sweat asking questions, the people here don't mind answering them, and getting some answers could possibly save someone from getting hurt. Of course , there probably will be different answers, from each reply, it's your job to figure out which advice you want to follow
By the way, make sure your rollers do not contact the blades teeth, they should ride just behind them . the rear roller , if sdjusted right, will keep the blade from moving backwards when the blade is cutting