I own the MR CE as well as 8 other TK helmets: RS, ATA, AP, TE2, SDS, EFX LE, CfO. And there is not comparison with the others, sorry, MR CE helmet is a nice idealized symmetrical licensed lid, but that is all that it is. If you want somewhat accurate MR CE/EFX PCR is not your best bet. I still keep it though as it was my first 1:1 helmet.