I mount my Saito 100 in the upright position, with tank at cg, and with a cline. Looks good to me, better than no cowl. No hassle in installation (very easy to do), no hassle in starting, no additional weight/wiring complications from glow head connector, and I don't need to remove the cowl for minor engine or fuel line jobs. My engine likes the additional cooling too, especially in a hover.