Hi everyone,   So, after a long time of thinking about it, I finally went ahead and ordered an HDPE helmet from DA PROPS (UK...edit, now France...). The kit was delivered in good time and included all the the parts required for the build.         As many of you might know, I’m a little particular with OTTKs and requested this to be supplied un-trimmed. As below, where the back section meets the tubes on the face plate, the lower edges were quite flared. After a rough trim and trial position