Okay, since this thread seems fairly pro-Type C, I'll go ahead and do it again:
C is amazing. Doesn't even need lube, very fast, not as many pops as type A (providing you put a lot of love into tensioning it to PERFECTION), insanely fast, cuts corners better than A or YUGA (once again, this is only true for MY cubes, don't know if it's universal), and did I mention they are wicked fast?
Also, I find that the bad feeling over time is helped if you never, EVER, lube it.