i installed a oem cable, steeda aluminum quadrant and firewall adjuster few months ago and it was perfect at first but now its really hard to get into gears sometimes. first driven it shifts fine but after a while of driving its really hard to get into gears and if im at really high rpms like 5+ i can forget it. is my cable being stretched? or maybe a clutch issue? the cable was routed correctly so its not touching anything hot.