Total Boat Lust marine spar varnish

Anybody use this stuff? I am in the middle of a finishing schedule with 5 coats in 24 hours. Drying is more like 90 minutes at 72 degrees 39% humidity. But so far so good. I am thinning with naptha at 20 %. Any experience with this varnish would be appreciated.

Thanks, Gordon

I'm really only familiar with their waterborne products which appear to be very good...I have not yet tried them, however. The company is reputable. Their resin products are also very good.