W.O.T Coil or S.E.F. coil

[W6PEA]

I am thinking about getting another coil for my Sovereign GT. I have the stock 10in coil now. I am thinking about getting a 12x10 SEF
Or a 15in WOT. any pros and cons between them besides price?

I know where to get a WOT coil but not the SEF.

 

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