Logstash logging behind in consuming data from kinesis stream

Hi I have a setup with 4 logstash servers , they are configured with kinesis input plugin,
I wanted to check if i can have multiple conf's on each logstash for the same kinesis stream. so lets say 2 per logstash so will have 4*2 =8, 8 workers pulling from kinesis stream, since they write to dynamo db the stream postion, will we have any conflict or duplicate data or missed data. Please advise