I'm not sold on the foam compensators. I been running then for a while. If your not running in extremely high heat I just don't see where us mortals are going to see a difference. The biggest issue however is the inconsistent rebound when building the shocks. If you don't keep everything really fresh( shafts with no coating missing, fresh orings) when u build them for full rebound it won't rebound fully. They will hydralock or one will come out farther then the other. Back to the stock caps for me especially for the indoor season.