I think Ben Roberts, due to the fact Michel won't be 100% in confidence or fitness after a lengthy injury, and Roberts has played at the higher level. However they are both very able and excellent goalkeepers. It's a great problem for SC to have.
I would start with Roberts and give Kuipers half a dozen reserve games to get his kicking right and raise his confidence a bit.
I was impressed with Roberts last season in his brief spell - quick, confident, decent build for a keeper - and above all a player who WANTED to join us.
I would start with Roberts. Kuipers clearly looked out of sorts at Crawley. He hasn't played since very early this year and it showed on Saturday. Needs a spell in the reserves to REALLY get back to full fitness I suspect.
Roberts is a quality keeper and has a lot of experience. Kuipers can learn from him and enhance his game. Also the added bonus of a bit of competition will keep both of them on their toes.