I'm going to tell you that I wasted more time trying to keep from ordering or buying and the hour and half in the cage to fetch the buckets that I needed..
Instead I fiddled for hours and found that I only could make the adjust 'closer/better' and not acceptable. Remember you have 16 adjustments and 16x16 the possibilities for moving buckets. I did not use the 'inches' measurements that you used for the valves. I felt it was generally easier to add and subtract using the metric measurements and I felt there were more measurement increments. Eventually I decided Friday night that I would just buy new buckets. I called my closest dealer on Saturday morning and did the two hour drive.. (actually 1:15 minutes... 65 miles) but I had to spend 45 minutes there looking at stuff...
OK, back to the task at hand...
My observation is that there is only one measurement that is acceptable. While running on the high side is OK it is not good. The high of the adjustment will start to produce performance deficiencies because you will be starting valve movement late and finish early so the intake and exhaust cycles will be short.
If you look at the metric measurement you will see there is only 'ONE' bucket that will work. If you are there now than that is what works.. I think technically you want to be as close as you can to the low side of the measurement to get the best performance from the valve adjustment. That is why I decided to buy the buckets I need.
I don't understand the technical reason the valves start to change the 'adjustment'. I did quite a bit of the simple math needed for this adjustment and the thing I came away with is... it is more critical to know what your exact valve adjust is so that the next time I know what changed. If I had been more precise in my measurements the last time I could have determined if any were changing and what the expected duration of the next change.
Net of this is IMHO changing all buckets to the next higher is expensive and counter productive.
Tomorrow I will do the deed and get the LT on the road as I need to go back to work next week and the LT is my transportation.