this is the second time I’ve built these rims and for the second time the tires aren’t seating right. the first time I did it they didn’t seat well and the rim was wobbly (not sure if that was the reason). the second time I used soapy water thinking it might fix the prob. it didn’t the second time either. the first time my friend tried his best to true the wheels after we put them together but the spots that were uneven he couldn’t really fix. there’s a line about .5 to .75 of an inch line above the bead and it looks like the gap between the line and the rim isn’t the same all the way around and on a small part I cant see the line because its under the rims lip. is this because of the tire being too old (2.5 3 yrs old)? we didn’t true the wheels yet not knowing what the deal was yet. what could be the problem?