diff --git a/fdbclient/ServerKnobs.cpp b/fdbclient/ServerKnobs.cpp
index bc6f181c79..620b24cd2f 100644
--- a/fdbclient/ServerKnobs.cpp
+++ b/fdbclient/ServerKnobs.cpp
@@ -290,7 +290,7 @@ void ServerKnobs::initialize(Randomize randomize, ClientKnobs* clientKnobs, IsSi
 	init( SQLITE_CHUNK_SIZE_PAGES_SIM,                          1024 );  // 4MB
 	init( SQLITE_READER_THREADS,                                  64 );  // number of read threads
 	init( SQLITE_WRITE_WINDOW_SECONDS,                            -1 );
-	init( SQLITE_CURSOR_MAX_LIFETIME_BYTES,                      1e6 ); if( randomize && BUGGIFY ) SQLITE_CURSOR_MAX_LIFETIME_BYTES = 0;
+	init( SQLITE_CURSOR_MAX_LIFETIME_BYTES,                      1e6 ); if (buggifySmallShards || simulationMediumShards) SQLITE_CURSOR_MAX_LIFETIME_BYTES = MIN_SHARD_BYTES; if( randomize && BUGGIFY ) SQLITE_CURSOR_MAX_LIFETIME_BYTES = 0;
 	init( SQLITE_WRITE_WINDOW_LIMIT,                              -1 );
 	if( randomize && BUGGIFY ) {
 		// Choose an window between .01 and 1.01 seconds.
@@ -822,7 +822,7 @@ void ServerKnobs::initialize(Randomize randomize, ClientKnobs* clientKnobs, IsSi
 
 	// Blob granlues
 	init( BG_URL,               isSimulated ? "file://fdbblob/" : "" ); // TODO: store in system key space or something, eventually
-	init( BG_SNAPSHOT_FILE_TARGET_BYTES,                    10000000 ); if( buggifySmallShards || (randomize && BUGGIFY) ) { deterministicRandom()->random01() < 0.1 ? BG_SNAPSHOT_FILE_TARGET_BYTES /= 100 : BG_SNAPSHOT_FILE_TARGET_BYTES /= 10; }
+	init( BG_SNAPSHOT_FILE_TARGET_BYTES,                    10000000 ); if( buggifySmallShards ) BG_SNAPSHOT_FILE_TARGET_BYTES = 100000; else if (simulationMediumShards || (randomize && BUGGIFY) ) BG_SNAPSHOT_FILE_TARGET_BYTES = 1000000; 
 	init( BG_DELTA_BYTES_BEFORE_COMPACT, BG_SNAPSHOT_FILE_TARGET_BYTES/2 );
 	init( BG_DELTA_FILE_TARGET_BYTES,   BG_DELTA_BYTES_BEFORE_COMPACT/10 );
 	init( BG_MAX_SPLIT_FANOUT,                                    10 ); if( randomize && BUGGIFY ) BG_MAX_SPLIT_FANOUT = deterministicRandom()->randomInt(5, 15);