I think not only will they lay longer, but also bigger eggs. I remember reading somewhere that delayed onset of lay resulted in much bigger eggs overall. Maybe they will start in the early spring and give you giant delicious eggs!!!
Speedy(RIR x SLW) was my 3rd to start laying and I'm lucky if she hits 44g

I think hers will just stay small. When she came out of molt, her first egg was 29g LOL... but she does lay 6 eggs a week regularly so that's fine. I tell you who really has surprised me is Dottie(Barred Rock)... she has laid an egg everyday for the last 19 days... MAYBE more, but that's when I started using Flockstar so, yeah. She spends 20 minutes in the box and then goes on with her day - EVERYDAY. It kinda freaks me out cause I feel like they need days off you know??
I can hardly wait to see them. They should be a light powdery blue kind of color. She also has a chance of laying brown though... so we will see... maybe tomorrow
Oh my... I just looked over the past 3 weeks... and I am averaging 62 eggs a week