Dude, whether you change motors out alot or not, direct solder is still the best way to go. It is nothing to take a soldering iron, touch it to where the leads attach to the motor, and thats it, motor removed. A little flux, tin the tip, and presto, new motor back in. The thing is, those connectors are so big and bulky, that it is not the fact that they weigh anything, but the fact that when they are combined with all the other connectors and wires you got under the body, it can be a mess, so if you can eliminate a connection, why not. One word of advice, if you invest in a nice soldering station, it will be one of the best rc investments you will ever make. I picked up a top of the line, used, older, Ungar soldering station a couple months ago on ebay, for less than 50.00, and the thing rocks. Super hot, and it takes a split second to create an awesome " weld. " I used to use a big, bulky, quick-on, soldering " gun ", and I was always messing stuff up. Good luck!