I had some humbucker sized P-90s made for a Schecter C7 Blackjack and really like them. The pickups were well made and came with all the necessary stuffand the customer service was excellent.
I had a pair of humbucker sized p90s in a '66 epiphone. I replaced them with real dogear p90s. The p90s sounded fatter and smoother. The VV's were less powerful and more like an overwound strat pickup sound to my ears.