…has been nothing but wonderful!
I've been woefully remiss in follow-up [out riding too much?] as a follow-up to my post #3 at http://cruzbike.com/34-tooth-cassette-recommendation. Snapped up the 11-36 Sunrace casette last fall which has worked perfectly [& shifts more smoothly than did SRAM 11-34 PG950]. Unfortunately seems to be out of stock at Amazon for the moment.
In combination with 40-559 Marathon Racers it is reasonably quick & splendidly versatile. If anything, I'd now only wish for a higher top end !!! Perhaps via a 2nd, 53T chainring [which would nearly give the same gearing to a 451 wheel set that I currently have with the 559s…]
Will strive to be more forthcoming going forward i.e., after today's ride…