smokinRZ (man...I wish I would'a bought one of those!!):
Sunline stinks (imo). Their angle and comfort level are zip-point.
While you may well have basket problems, I'd bet there are some sort of honkin' huge springs in your bike. That seems to be a common error (imo). 'If a little is good, then a LOT is MUCH better!' being the idea, stock springs are often ditched for stronger springs.
Try a decent lever/perch, make sure your basket is good to go, but don't go overboard on the pressure thing.
Fredette makes 'kits'. They have the XR plates (THAT'S a good place to get more stick...use a better friction plate!), but I don't know what kinda springs.
Make sure the actuator assy is shimmed correctly and not galled to uselessness.