[Michigan Joe]

Here is a picture of what I was talking about for tweaking the Miggle TTC back prongs. You gotta thin them out and angle them back. I do this by taking the pliers and setting them on a candle warmer for 5-10 minutes to heat them up first. In the picture you can see that both back prongs are on the same identical backward angle (you can angle back more or add a slight backward "curl" for additional strength). You want the front prongs to be more vertical. Getting the prongs to be identical in the way they are angled seems to be a critical success factor for getting a TTC to run staight (and to be able to arc both ways consistently when you turn the dial). To run smooth you need those back prongs smashed and angled back as shown. The rear prongs will become dominant and provide drag (to eliminate the bounce for strength and stability) while the front prongs provide the horse power to move the base, but only if they are more vertical. Many people like to place the Proline TTC dials in the regular Miggle TTCs because they have more oomph (springier prongs)than the regular dials.