I recently sent a request to a genealogy site asking about the Slechta name and the two coat-of-arms they had and this is a response I received. I plan to follow up with them to find out what else they have.
In searching our offline database, provided by our research team, we have found a listing for the surname Slechta from Czechoslovakia. However, in taking a closer look at the details of this history it is noted that the surname derives from the Middle High German "sleht" and the Middle Low German "sleht", meaning "simply, straight, humble". The surname is also noted as being derived from the town named Schlechtbach, which is located in southwestern Germany. Research also shows record of a village by this name in the Rhineland region.
In searching further, we do have an exact listing for the surname spelling of Schlechte from Germany. It appears to have the same meaning as described above from both the Middle High & Middle Low German word of "sleht". The village of Schlechtbach in the Rhineland region is also mentioned. It does appear that this surname listing does have a seperate coat of arms than that mentioned before with the spelling from Czechoslovakia.