We currently have quite an old linear airtrack (not sure of make) and blower, which seem to work quite well. However, the gliders are on their last legs, plus we struggle with the pulley set-up for the Acceleration GCSE required practical. I use a lab jack and G-clamp to position a pulley at the end of the airtrack, and we've had problems with clearance over the end of the bench etc., and I feel it's time to invest in new equipment which is fit for purpose. What set-ups do you use? Can anyone recommend anything? We use Data Harvest Light Gates. Any advice would be much appreciated!!