I had my suspicions with the last pack I bought, confirmed some way by the black stuff and now, with a new delivery of my usual Yellow-green Milliput, it's definite....the silly buggers have changed the formula. My favourite filler is now grainier, making it more difficult to mix and spread and it is way more sticky than before, or at least the green component is, which now backs up people who complained of its "messiness" from the days when it really wasn't if you spit on yer mitts. Now, I hardly have enough spit to stop pulling the whole lot off what I have just put it ON! This is not progress, but then, when was any new development of a substance an improvement? Have you tried to stick anything with modern Evo-Stick, that amber/clear coloured crap that runs out the end under gravity alone? Don't bother. Use Evo-Stik carpet adhesive in a tin. That's yer Original cream snot and so much the better for it.
I don't know of anything like Milliput, so will have to keep going with it. Of course it is not "yellow-green". It never was. Now it's baby poo and pale grey. The sticks are now very close in colour, which makes life very difficult to mix the 2 parts in anything but strong daylight. I always do Milliputting in the evening. It's an ideal job for that point where you get the impression the Mrs. expects you to be sociable, whatever garbage the telly companies are pushing out. But now, with the change of formula, you won't be able to mix it properly and even if you can, you'll spend the rest of the night getting the muck off your fingers!
LEAVE IT ALONE fer Chrissakes!!!