yes, it's true. Paul's chainline is 44mm. Which means that if you didn't want your chainline to be 1.5mm off, you'd have to get a longer bb spindle. But the chainline difference won't be noticeable - it's negligible.

Both are very well-made hubs, both are a good decision. Prolly says that his Phil/Open Pro wheels are much heavier than his Paul/Deep V wheels. shrug. Both will last you a long time.