Sue,
You should definitely do what ever makes you most comfortable. However, getting only that small difference could result from having the TDC not exactly the same both checks. It is such a small difference... especially when you can still see thickness on the valve.
It's nice having a back-up bike so you have a choice! I keep putting mine off because I just don't want to face it! Don't know anything about Bruno...
I agree about putting money in the bike...it may be more than it's monetary 'value', but the joy of the ride and ownership is priceless!
[Ignition coil - $100, Stainless steel brake lines - $90, Valve job - $400+, Riding down the BRP with a smile on my face - priceless!]