diff --git a/detectors/cds/test/test.db/core/Annot.lst b/detectors/cds/test/test.db/core/Annot.lst
index b1d9e74..56be5ad 100644
--- a/detectors/cds/test/test.db/core/Annot.lst
+++ b/detectors/cds/test/test.db/core/Annot.lst
@@ -14,5 +14,3 @@ rpl23 rpl23 787 1:782_2:2_3:1_4:2 POLYEX ribosomal_protein_L23
 rpl32 rpl32 474 1:474 MONEX ribosomal_protein_L32
 rps15 rps15 480 1:479_2:1 POLYEX ribosomal_protein_S15
 rps7 rps7 853 1:853 MONEX ribosomal_protein_S7
-ycf1 ycf1 408 1:406_2:2 POLYEX hypothetical_chloroplast_RF1
-ycf2 ycf2 654 1:649_2:5 POLYEX Ycf2
diff --git a/detectors/cds/test/test.db/shell/Annot.lst b/detectors/cds/test/test.db/shell/Annot.lst
new file mode 100644
index 0000000..7648c4a
--- /dev/null
+++ b/detectors/cds/test/test.db/shell/Annot.lst
@@ -0,0 +1,2 @@
+ycf1 ycf1 408 1:406_2:2 POLYEX hypothetical_chloroplast_RF1
+ycf2 ycf2 654 1:649_2:5 POLYEX Ycf2
diff --git a/detectors/cds/test/test.db/core/ycf1.fst b/detectors/cds/test/test.db/shell/ycf1.fst
similarity index 100%
rename from detectors/cds/test/test.db/core/ycf1.fst
rename to detectors/cds/test/test.db/shell/ycf1.fst
diff --git a/detectors/cds/test/test.db/shell/ycf1.fst.phr b/detectors/cds/test/test.db/shell/ycf1.fst.phr
new file mode 100644
index 0000000..a7d2cfc
Binary files /dev/null and b/detectors/cds/test/test.db/shell/ycf1.fst.phr differ
diff --git a/detectors/cds/test/test.db/shell/ycf1.fst.pin b/detectors/cds/test/test.db/shell/ycf1.fst.pin
new file mode 100644
index 0000000..1ff1bfc
Binary files /dev/null and b/detectors/cds/test/test.db/shell/ycf1.fst.pin differ
diff --git a/detectors/cds/test/test.db/shell/ycf1.fst.psq b/detectors/cds/test/test.db/shell/ycf1.fst.psq
new file mode 100644
index 0000000..24a3bc6
Binary files /dev/null and b/detectors/cds/test/test.db/shell/ycf1.fst.psq differ
diff --git a/detectors/cds/test/test.db/core/ycf2.fst b/detectors/cds/test/test.db/shell/ycf2.fst
similarity index 100%
rename from detectors/cds/test/test.db/core/ycf2.fst
rename to detectors/cds/test/test.db/shell/ycf2.fst
diff --git a/detectors/cds/test/test.db/shell/ycf2.fst.phr b/detectors/cds/test/test.db/shell/ycf2.fst.phr
new file mode 100644
index 0000000..7a9b779
Binary files /dev/null and b/detectors/cds/test/test.db/shell/ycf2.fst.phr differ
diff --git a/detectors/cds/test/test.db/shell/ycf2.fst.pin b/detectors/cds/test/test.db/shell/ycf2.fst.pin
new file mode 100644
index 0000000..5949535
Binary files /dev/null and b/detectors/cds/test/test.db/shell/ycf2.fst.pin differ
diff --git a/detectors/cds/test/test.db/shell/ycf2.fst.psq b/detectors/cds/test/test.db/shell/ycf2.fst.psq
new file mode 100644
index 0000000..9dcb08d
Binary files /dev/null and b/detectors/cds/test/test.db/shell/ycf2.fst.psq differ
diff --git a/detectors/cds/test/test.ref b/detectors/cds/test/test.ref
index ba758bd..5466e04 100644
--- a/detectors/cds/test/test.ref
+++ b/detectors/cds/test/test.ref
@@ -278,7 +278,7 @@ FT                   /gene="ycf1"
 FT                   /locus_tag=""
 FT                   /product="hypothetical chloroplast RF1"
 FT                   /inference="similar to DNA sequence:AC_000188:LyesCp019"
-FT                   /inference="detect pass:pass1:core"
+FT                   /inference="detect pass:pass1:shell"
 FT                   /translation="MIFQSFLLGNLVSLCMKIINSVVVVGLYYGFLTTFSIGPSYLFLL
 FT                   RALVMEEGTEKKVSATTGFITGQLMMFISIYYAPLHLALGRPHTITVLALPYLLFHFFW
 FT                   NNHKHFFDYGSTTRNSMRNLSIQCVFLNNLIFQLFNHFILPSSMLARLVNIYLFRCNNK
@@ -322,7 +322,7 @@ FT                   /gene="ycf2"
 FT                   /locus_tag=""
 FT                   /product="Ycf2"
 FT                   /inference="similar to DNA sequence:AC_000188:LyesCp004"
-FT                   /inference="detect pass:pass1:core"
+FT                   /inference="detect pass:pass1:shell"
 FT                   /translation="MRGHQFKSWIFELREILREIKNSHHFLDSWTQFNSVGSFIHIFFH
 FT                   QERFLKLFDPRIWSILLSRNSQGSPSNRYFTIKGVILFVVAVLIYRINNRNMVERKNLY
 FT                   LIGLLPIPMNSIGPRNDTLEESVGSSNINRLIVSLLYLPKGKKISESCFLNPKESTWVL