Just wondering if anyone is using the pen sander and is it a good tool? Since it requires a Voltage adapter it is pretty costly - I am looking for something to sand that area of planking right next to the stem and sternpost - that area where you need something to sand with the run of the planks but it is right up against the stem/keel/sternpost. What other uses do you use it for and is it an effective tool? Or would a larger detail type sander also work? Thanks for any help…..