We brought the casting kit with frame for ourselves (our daughter is now 7 months old) and for my sister in Australia, whose daughter is 9 months old.
We tested our kit and had one successful foot and then suffered a number of failures.
We then took my sisters kit to her in Australia over Christmas and after some experimenting we found that if you doubled the recommend amount you would have more success. We produced two beautiful castings of my niece's feet (much to her fathers surprise) fairly quickly.
On returning to the UK we ordered more impression power and doubled the amounts and also had success with two little feet for our daughter.
I originally brought the kits as we weren’t able to afford the real thing. I am so glad we have this beautiful record for our daughter.