That does bring up an interesting question - since new hires are niether DALS or DALN, does that mean they are not fenced off the fenced fleets? I.E. in theory would a new hire be awarded a 744 spot before a DALS guy would be awarded it? I think the way the SLI award is worded, that is the case.
So bottom line, as always, is: Bid what you want, and want what you bid.