+1 on BigTinBoat's comments. I used a Shoebox F8 for 3 years and had no moisture issues. I had no high pressure outlet filter whatsoever and never saw moisture. What I did have was a Wilkerson X06-02-000 filter with reusable desiccant beads. It was installed in between a quiet running Rolair JC-10 compressor and the F8.
It mystifies me that guys pay $499 for a Shoebox, $100-200 for an airless compressor, then another $400 for an Alpha output filter. At $1499 you can have a much faster Carette with PMV, auto drain, self timer, runing at 110 volts, with a Carette factory output filter. No hassle with connecting hoses, secondary filters, and waiting 24 hours to fill your 88cf tank for the first time. The Carette has all the features of a dive compressor, is easy to maintain, and a better investment than any booster with all of it's required add ons.. It is plug and play. The Air Venturi fills faster, but it is loud, has direct drive, and puts much more stress on it's pistons and motor to achieve faster fill times.
The reason Shoeboxes dropped drastically in price is that they were no longer competitive in the marketplace at their old price. Anyone who does research will realize that a Shoebox setup, an Altaros setup, or an Omega have been surpassed in value and features at their cost. They are either too slow, require booster compressors, or are just not a value for their total investment price. The Carette followed by the Air Venturi compressors are the current best values for users who want a decent compressor for long term filling 66cf to 88cf carbon fiber transfer tanks. The state of the art changes each year and who know what will become available in the future, but for now the Carette and the Air Venturi offer more value and ease of operation than their competition.