I have a Provari that is said to arrive today. I bought it used and it came with 2 extension caps. Both of the extension caps have springs included but not installed. Anyone have any tips for putting the spring in? I just had a Vamo (for about a day and sold it, lol) and replacing the spring was very easy. Is the spring in the extension cap of the provari similar? Just wondering I want to be all set when this bad boy comes in a few hours. Thanks in advance guys and gals. -TCAD