Since my motors are coming out I am looking at sending my B&M 250s in for a refresh/rebuild. I have looked at Supercharger USA and the Blower shops rebuild price list. Is there anything I should make sure I get done to them? Price is not an issue, I am looking at $700-$1000 from what I see for a total "go-over" with new teflons, bearings, seals, Hard Anodizing, etc. In general in the past I have refreshed them before (about every 2-3 years or 50 hours or so). But have not gotten the Anodizing or some of the extras done. Would I be wasting my money on those extras or is it worth it?