I compared old parts with Italeri molding and ESCI sprues have more flash on parts. But there are no sink holes on them! All road wheels are perfectly molded. Unlike in Italeri (and also Revell rebox) kits, where there are ugly and unfixable sink holes in half of the road wheels...
I remember reading someone claiming that sink holes plaguing practically all Italeri kits are result of poorly designed molds. Well, the example of M60 kit shows that this is not true. From the same molds ESCI was producing fully formed parts and once Italeri got them, sink holes appeared... This means that Italeri just are making some serious errors during the molding process.

I hope in a few years someone will buy Italeri molds and re-release their kits using proper quality molding process!
Pawel