All blue and "other" spacer combinations were discontinued 10 or more years ago. I asked Gary Randall why this was the case. The answer, basically, boiled down to the fact that the shop had to stop some place. There was a letter sent to all authorized dealers advising them of the change. All red, all black, red, white & blue and metal (aluminum or brass) were/are still available. I can certainly understand limitations from the shop, given the backlog and scheduling issues. They are getting back on track now and my June order is within one day of it's original scheduled ship date. The same purpose and reasoning was implemented with the "5 option limit"...Ya' gotta stop some place.
Hope this helps, Capt. Chris