Thanks, @teamsteem am firstly I went through your old posts especially your post of witnesses has helped me a lot I have been on steemit for three months now and I had never voted for any witness because I was green about it but am happy to say with your post I have managed to cast my vote to "you" and other witnesses that you mentioned you support because I literally did not know the others but I just cast because you support them and I trust your judgements .AM still reading your old posts because there is a lot to learn. Maybe a simple question if I have voted for 30 witnesses and I cannot vote any more can I change my vote just in case I find someone else better than the ones I voted?