Based on your pre-lay weight of 3500g last season with a ~1375g clutch, it does not appear she has gained ANY weight back??
3500g- 1375g clutch= 2125g post lay weight.
I really feel that even if she was back to 2500g I would not pair her. 2500g is a good weight- but not for a female that was 3500g last year. I would start thinking about pairing at 3000g. Even at that point she is down 15% body weight. You'll likely get eggs, but probably not 10-11 again.
I would hold off for a bit and put her on a 4-5 day feeding schedule and give her fresh water daily in large bowl. Sandwhich her in your rack between some heavy hitter feeders, so she feels and smells what is going on, and feed her last. Medium or large rats for the calcium.
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