My approach to four tablespoons of syrup is to plunge a tablespoon into the tin, pull it out well loaded and twirl it till it gets to my mixing bowl. Done. Estimate but, hell, I don't care.
I remember my mum teaching me about spoon measures as equivalents to weights. A heaped tablespoon of flour is about an ounce (near enough, dam it! did nobody else's grandma cook using spoonfuls
?); a rounded tablespoon of sugar is about an ounce; butter's easy; eggs are easy; hey presto, one cake.
So, in similar mode, I reckon one well loaded Tbsp syrup is near enough equal to four tiresomely measured separate ones 