Did you try your palm side read
When and where are you doing your xM1 and Spark 2?
Also,
be aware, the xM1 is 3mm, and apparently you can really feel the extra 1mm 
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Did you try your palm side read
When and where are you doing your xM1 and Spark 2?
Also,
be aware, the xM1 is 3mm, and apparently you can really feel the extra 1mm