Guys I have getting a nearly un started kit, the guy has cut out the main retract wells for Eurokit retracts, i am going to junk then and get a set of Robarts. I have seen 2 sets one is supposed to be a direct drop in replacement 630-HOTSPOT and the other set are for the Eurosport 635EURO. The Euro set are a different retract unit and have a thicker Strut, I can get the Euro set with a 90 degree nose unit. Just wanted to know if anyone has used either set in a Hotspot and with what results.