I'm using an Aguilar TH500 with my Crazy8. I love it! It's perfect for my small to mid-sized room gypsy jazz and roots country sans-drum gigs, and I love how it opens up when I add another speaker to bring the impedance to 4Ω for louder stuff. Super responsive and punchy, warm and full.
If I'm not mistaken, the 88 is 4Ω, so together the 8/88 would bring the impedance to 2.6Ω, below the rating for the Aguilar. The Doubler is rated down to 2Ω, right? Is Arnopol building your cabs? Sounds like he's loving the Puma.