@stevey as I mentioned before about bike costing 10x mine, I think when I look at the hill segments the weight shows. the guy on the
Onix with Shimano Ultegra and about at 2.5kgs less than mine stripped down I still have a better time on this segment (but this could be due to lights), by 2'30"
http://www.strava.com/segments/2746413.
Glad you enjoyed the ride.
The spacers I have found out are a little more delicate on 9sp cassettes than the 8sp ones, broke two splitting the cassette, I have glued them if that doesn't I will thin a couple of 8sp ones, but it will be a while still before I can test it on the road, so it is now a triple 52-42-30 with 28-24-21-19-17-16-15-14-13 which means I will probably be using the 30th on the 21-16 range more than the 42 on 28-21 range as 30x16 is 49.31" and 42x21 is 52.6" (this also backs up my idea that there is actually no such thing a granny ring just gears for the right terrain) the overall gearing of the bike is the same as it was when an 8sp but much better stepping from 13-19 ( 13-14-15-16-17-19 instead of 13-15-17-19), and almost identical to when I had it on the touring cranks of 26-38-48 when I first started of 12-13-15-17-19-21-24, the range then was 28.49" to 105.2" currently 28.18" to 105.2" But I did ride with a rear 28th for sometime, but it was difficult making anything like a nice set of ratios.
As a comparison a compact 34x28 is only 0.9" shorter than my 30x24 but you would need to use a 12th for a longer high gear 50x12=109.58" opposed to my 52x13 105.2" meaning that to get the same mid to high end one tooth stepping you would still need to have the same low end as me and thats a 10sp compact.