Iwata Smart Jet Pro vs. SPARMAX TC-620X --Opinions Please!

Hello--I've narrowed it down to two compressors which I believe are good and will suit my needs. The price is close, although the Sparmax has a tank. I hear great things about Iwata, although my understanding is that Sparmax makes Iwata. Would love to hear your thoughts?? Most of my modelling is aircraft and vehicles. Sparmax ‧ Air pressure: 40 psi/60 psi ‧ Air Flow: .81 - .88 CFM ‧ Zero maintenance ‧ Encased regulator, moisture trap & gauge ‧ Automatic Shut-Off ‧ 2 x detachable airbrush holders ‧ 2 x air outlets ‧ 2 x 3 meter braided hoses ‧ 2.5 Liter Air tank with gauge Iwata Smart Jet Pro -Maximum Pressure: 40 PSI -Air Flow @ 20 PSI: .64 cfm -Horsepower: 1/8 hp -Noise Level: 50 db -Hours of Service: 5,000 -Weight: 14 lbs -2 Year Manufacture's Warranty · Compressor shuts itself off automatically when not in use · Zero-maintenance, oil-less piston air compressor · Built-in airbrush holder · Protective Outer Case · Moisture filter with Air Regulator and Gauge (also prevents pulsation) · Bleed valve adjustment to release moisture · High-strength polyurethane hose fits Iwata airbrushes · On/off switch · Size: 10.5 x 12 x 6 in. (26.5 x 31 x 15.5 cm) · Smart Jet Technology Smart Jet Technology · Less heat-related moisture build-up · Produces full-capacity air on demand · Reduces running time · Less motor wear means longer compressor life · Inherently quieter in public environments