DJLSB Vapes does a YouTube vid. Comparing the SMJY vs the Original.. 1:1. I've got the org. SM reducer kit in it as well. Fits perfectly.I don't have a SJMY but I have an Angelcigs and SXK. Both are inferior to the Tobecos I have. The AC and SXK both have started leaking at the top cap and installing new o-rings didn't help.
As for wicking, I pack the tails to the back of the channel to leave the 2 front (of 4) juice holes clear and never had an issue.
I think I'll try your method on the next wick. I've usually got them kinda covered.