Haven't done it in a Squirrel, but in a Jetbanger it is a real handful.
Not much excess power, not much control over fuselage attitude, dismal view of what is happening underneath, relying on groundies with radios, and other groundies trying to remember the briefing you gave them.
Biggest problem is the cable drum - if it doesn't have a brake that is easily and smoothly applied and released, you are going to experience some horrible pitch attitudes and windows full of trees. I had one rockape who substituted the drum I saw on the recce, with a drum that had no brake at all. He used a lump of 4x2 jammed against the drum to provide braking. Usually it was too much braking, and when the wood caught on fire and he dropped it, there was too little!
