Drill a hole through the landing skid (67361) so the struts (67378) will go all the way through the skid. This will make the landing skid much stronger. If you don't do this, then the nipple on the landing skid will probably break off in a hard landing.
When building the landing skids (67361), use thick CA instead of the thin CA included in the kit. The thin CA runs all over the place and is difficult to get in the right place. Also, CA the rear skid struts into the frame FIRST. Then CA the front skids into the frame and make sure they almost align with the rear skid struts. If you don't do this the landing skids will probably be crooked.
Do not use CA to glue in the tail boom. This usually works too well. When you crash, it will be almost impossible to remove all the tail boom bits and you will have to drill out the remaining pieces. It is much better to put a few layers of CA on the ends of the tail boom and let this dry thoroughly, then friction-fit the tailboom into the body and the tail rotor assembly.
The landing skids may pop off the frame in even mild landings. You can reinforce the landing gear by CAing a length of CF rod across the front and rear landing gear skids about a half-inch (1.25cm) below the chassis (67360). This absorbs most of the landing stress that would normally pop the landing skid struts off the frame.
The Piccolo tends to lose the bearings on the hub (67566) on hard crashes. You may want to purchase an aftermarket aluminum hub or carefully thick CA the bearings to the stock hub to avoid losing the bearings. Beware when purchasing an aluminum hub; some of them appear to be made from soft aluminum and will bend easily. I do not recommend J's aluminum hubs for this reason. The Precision Model Products hubs are of much better quality.