ORIGINAL: BIGMIG
But i do wonder why more guys don't use battery drills,they are cheap now and do have a lot of power.
The biggest issue with a pistol grip drill being used as a starter is the poor ergonomics for single handed starting. If you use helpers and always two hand the drill then its fine but used single handed as many do especially with smaller airplanes then they can become dangerous at worst and difficult to use at best.
John