Thank you Carolyne
Its all part of the fun and it usually takes a few beads to get a hang of how each glass works so you have to expect a few oddities at the beginning.
Once you get the hang of it 'though you can usually work out how to get which colours - this is my favourite of the silver glasses so far
I have some lentils fresh from the kiln which have worked even better than the rounds - I'll try & show them tomorrow