So far I'm very happy with the Coleman's. The downside to them is that they are all custom cut so they are never in stock for a next day shipment. The upside is they are always available and can be delivered in about a week (if not being sent out for Cryo freezing to Diversified). Paul Weston maybe able to speed up the process if I'm in a bind, but I usually have a spare set (like the stock ones I still have) and don't don't forsee a need a super fast turnaround.