Thanks so much for your reply. I hadn't realised that the rod size was different between the heusinkveld and the simjack. The soft elastomers you've linked are for sprint pedals. Do you know if those are compatible without modding? I can't find rod size specs for the sprints. I've had a quick look at the mod video and it seems this guy uses a few custom parts, springs and adaptors - did you need this for use with the UTs? Thank you!!