Hi Mark,
Your thinking is spot on.
Make sure your pipe is long enough to go into your second FV and curl round the bottom a bit. That way you'll minimise splashing which is a Bad Thing.
What I do is weigh out the sugar and pop it in a saucepan, draw off a half pint or so from the tap (before you attach the pint) and add that to the sugar. Warm it up to near boiling and make sure its all disolved. Add that carefully to the bottling bucket then run the beer in. It'll all be nicely mixed through when it's all transferred.
Don't leave it at all before bottling. You should have your bottles all ready to go before you transfer. The yeast will get going on that sugar straight away!
It should help get you clear beer in the end as you should be able to disturb the yeast cake less by doing it this way.
