no JJ,
By using quail splashes you wont loose the pattern, but then you'll just get blue silver quail pullets again and blued yellow males
I was talking about a solid splash, which for your F1 would be a total loss of pattern, they'd just be blues, but would carry the silver quail genes. It would take a back cross from those to start getting quail patterned birds again.
I forgot you had that splash quail though, so that would save you a year as far as getting to the blue silver quail pullets at least
Breed those girls back to your silver male and you'll get 50% silver quail and 50% blue silver quail in both sexes. You can do this with blue quail too, but the splash work best for me in blue projects because they have a double dose of blue in them.
Do bare in mind, If I remember right, your splash quail are hatchery birds right? Make sure they end up decent quality before you breed them to the silvers. No need to use inferior birds in a project like this, you'd end up with more silver quail, sure, but would they be worth the effort in the long run quality wise.
Any time you go into a 2-3 year or better breeding project, starting with quality birds is a big plus. No need to spend all the time and money then have to worry with correcting type after its all done