I run the JETI Advance 18-3P with my Axi 2212-26 and 3s1p TP1320 pack on my MM Miniflash. The Jeti is externally mounted on the underside of the fuselage and is never warm, even after extended runs at WOT (neither is the Axi, probably since it's radial mounted and getting lots of air). From what I gather, the additional 8 turns in the 2212-34 means you will draw even less amps than the 2212-26, so it would seem you can also safely run the 2212-34 with the 18amp Jeti and 1200-1500 3s1p. You could also get away with just a 8 or 12 amp ESC, as the -34 motor is only rated for a max of 10 amps.

I have an astro whattmeter sitting on my bench, but still havent made the time to actually run the numbers with my setup because I'm too lazy and am quite certain I'm well within the recommended parameters.

Check out the manufacturer's site [link=http://www.modelmotors.cz/index.php?id=en&nc=produkty_vypis&url_ps=axi_2212_ 34&id_odkazy=m_ac]Model Motors[/link] for the full specs.