Thanks to both of the answers. I check about the the Simple checker. The reason for our question is that we are having two challenges, one with 555 and one with 77t founds within one callender day. The checker that we used to heck does not content labcaches, thats why this question :-). For instence if you go to the Netherlands you can pick up 125 and 110 series probably within one day ;-). That gives more people the opportunity to log our 2 challenges.