Hans,
You would be difficult...and different...LOL
Pistol Grip for me, gas pump style is completely useless.
But, Hans, you are correct, the best and most useful of all are Air-Way and Kirby with the straight hose end and curved wand. I love using the older style Kirby tools, the short hose end makes using the dusting brush, upholstery tool a snap. Fits into almost any place you need it. Straight, simple and to the point.
Try using any of the moderns stuff...it just about impossible.
Morgan