I have never ever seen a "home recipe" that specified egg content by weight.
the difference of "large" to "jumbo" is roughly 25% by weight - which is "a lot" except when reduced to the impact of a one egg batter quantity - and especially in a moist finished product, methinks you're safe using a jumbo.
USDA min. EU Sizes grams per egg
oz/doz oz per egg grams per egg
peewee 15 1.25 35.4
small 18 1.50 42.5 small less than 53
med 21 1.75 49.6 medium 53-63
large 24 2.00 56.7
extra large 27 2.25 63.8 large greater than 63 up to 73
jumbo 30 2.50 70.9 very large greater than 73
