the insides all look smooth. I'll try to take some pics when i get home from work tonight. I ordered from formulamod. I ordered alot (about $500-$600) worth and they hooked me up with a discount and DHL shipping. Took about a week to package but only 2 days to get to my home in California after it shipped from Hong Kong.
i9 9900K @ 5.0ghz (delidded) || Custom Loop || MSI z390m Gaming Edge || 32gb Corsair Dominator Platinums ROG 3200 || WD Black SN750 NVME 1TB || EVGA RTX 2080Ti Hydrocopper || Corsair AX1200i || Samsung CHG90 49in 32:9 || Maingear F131 w/ Apex Distribution Block || Corsair K95 Platinum || FUNC M-2 || 100-0-0 Heatware - Inglewood78