Sorry I haven't been keeping the board posted on these sleds.

OK, Loren is right. The first batch had a problem with the nipples on the floor and ceiling of the sled. This has been fixed on the design, but we cannot punch a new batch at the moment. We are a lighting company, and for some odd reason we have a TON of orders at the moment. Our CNC machines run from 7AM to at least 8PM most nights. Hopefully we can squeeze another run of sleds in soon.