digitech vavlve fx is pretty solid(I own a couple) and blows away gsp1101(tone wise) and its only a couple of decades older.

I've looked into a couple of the mic mods but hesitant to spend the money but probably worth the gamble seeing how u87 is slightly expensive
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Crom... so grant me one request. Grant me revenge! And if you do not listen, then to HELL with you!