will be ordering pistons and rings in the next week or two. ordering wiseco nitrous domes for the 410sb. will be 4" stroke 13.5:1 and spin between 7000-7500 shift points. n/a application and will see some street time. looking at total seal for rings. the pistons use the .043/.043/3mm ring. what should I get, file fit or gapless? why? thanks