--- a/repex_full_clustering.xml	Tue Apr 21 06:39:40 2020 -0400
+++ b/repex_full_clustering.xml	Wed Apr 22 02:27:53 2020 -0400
@@ -128,10 +128,10 @@
 
       <conditional name="options">
         <param name="options" type="select" label="Similarity search options" help="Different similarity search parameters are used depending on the input data to adjust for differences in read length and error rate">
-          <option value="ILLUMINA" selected="true">Illumina reads, default, all-to-all search uses mgblast, minimal identity 90% </option>
-          <option value="ILLUMINA_DUST_OFF" selected="false">Illumina reads, no masking of low complexity repeats  </option>
-          <option value="ILLUMINA_SENSITIVE_MGBLAST" selected="false">all-to-all search is performed using mgblast (W8, min PID 80) slow, experimental feature!</option>
-          <option value="ILLUMINA_SENSITIVE_BLASTPLUS" selected="false">all-to-all search is performed using blastn (W6, min PID 80) very slow, experimental feature!</option>
+          <option value="ILLUMINA" selected="true">Illumina reads, optimized for read length 100 nt or more (search parameters: mgblast, min PID 90, W18) </option>
+          <option value="ILLUMINA_DUST_OFF" selected="false">Illumina reads, no masking of low complexity repeats (search parameters: mgblast, min PID 90, -W18, -F F) </option>
+          <option value="ILLUMINA_SENSITIVE_MGBLAST" selected="false">Illumina reads, sensitive search (search parameters: mgblast,  min PID 80, -W8) slow, experimental feature!</option>
+          <option value="ILLUMINA_SENSITIVE_BLASTPLUS" selected="false">Illumina reads, more sensitive search (search parameters: blastn,  min PID 80, -W6) extremely slow, experimental feature!</option>
           <option value="OXFORD_NANOPORE" selected="false">
             Pseudo short reads simulated from Oxford Nanopore data, experimental feature!
           </option>