i'm ready to install my cylinder works big bore kit with wiseco piston & have a few questions. go easy on me. it's been over 20 years since i've done a top end....and that was a 2 stroke. i checked my ring end gaps. bottom ring spec.: .0185" actual: .021" top ring spec.: .0148" actual .0135" the directions say the end gaps should be filed to get them parallel. they say to file only 1 end following the other. the directios also say to use a special file - which i do not have. my questions: 1) since my end gap is greater than the spec. on the bottom ring, do i file that ring? 2) is there any problems using a standard file or possibly an arkanas stone? 3) am i creating fractures in the rings by installing them in the cylinder to check the end gap? i know those in the know here say not to re-use rings for this reason. is that only because the rings were in a running motor? 4) not real important, but i am curious - any reason why the oem piston has the thicker ring on top & wiseco piston uses the thinner ring on top?