Valve check vs manual decompression

I have a 2006 te510. Doing a valve check today everythng checks out fine except exaust on manual decomression side (front right looking forward) have no clearence "0" even after reducing by .006 thinkness on shim. I know it's not that far off. Is the decompresser doing somthing thats yankin my chain? Thanks.

FYI, Decompression cam lobe was contacting rocker arm tab. I turned engine over via the starter with plug in place assuming this would create enough compession to trip cam lobe in correct running position , didn't fly (found out auto decomp. is dissengauged by motor rev's). So I had to phisically move decomression cam off rocker via flat head screwdriver. Never had this happen before, Hope it's not a future problem with my auto decomp. It was new to me so I thought I would state my findings.

Were you able to get a different clearance reading after jinking with the decompressor ?

Yes fell right inline with the other exaust setting.006\.008 using 2.20 shims in my case. Sorry should have stated that.