hello, I am not sure if anyone has spent any time testing this or not, but anyways, I have 2x 35w soldering Irons, 1 is a pen style and the other is a gun style, neither of them have a power trigger on them so they are constantly on, anyways, I was examining them last night after i freshly tinned them both (they were in need of it) but I noticed both tips need to be replaced, both have damage to them and they don't seem to conduct heat to well (for lack of better words I have to choke up half way on the tip with the component to get it hot enough for soldering). The pen style iron uses a set screw on the tip while the gun style uses a threaded tip, the local electronics shop supplies threaded tips which will fit in the pen style and the gun but only 30w tips, I am wondering, would there be any pros or cons to using a tip rated for a 30w iron on a 35w iron?