This discussion seems to be deja vous all over again. If the contract says show time is one hour prior, then if you're comfortable showing one hour prior, that's what you should do. However, I know there are guys out there, certainly not any of you master aviators, but guys who might need a few extra minutes, to get their Sierra together, they should get there with enough time to do their jobs correctly. Everyone wants to be professional and fly a good jet. As well, hopefully anyway, everyone wants the company to make lots of money, if for no other reason, than to keep you living above the poverty line, and to pay for all your toys. With the above in mind, I'd say, if you can hack the hour show, do it. If you feel it's important to taxi slowly, do it. Go direct or not, your choice. Show for your deadhead at precisely one hour prior, and if you miss the flight, let crew travel worry about it. Fine. But, overall conduct yourself in a professional manner in, on, and around the jet. That way, when you're standing tall in the CP's office, he'll at least not be able to say that you've been acting unprofessional, and please explain yourself. Mostly this extra time issue is something I believe guys do to increase their comfort level. If you're satisfied with the minimum expenditure of time to get the job done, good on ya.
JJ