Method 1: Adjust your Life Points at the start of the duel. Want a quick duel? Then start with 4000 LP's. Want a long and grueling duel? Then perhaps start with 10000 LP's! It's up to you! Method 2: Before connecting to your opponent, why not see if he wants a special kind of duel that restricts certain types of cards or regular rules? For example, what about playing No Tributes? Again, it's up to you!
Method 3: Duel with your real cards instead! yes it sounds weird but, as long as you can trust your opponent, you don't need YVD to duel. Over an Instant Message or in a chat room, you could use your REAL deck! Just don't cheat!
NOTE: You CANNOT use alternate methods of dueling in UDC Tournaments. Only in friendlies may you change the rules. Also remember that you can only change the rules if YOUR OPPONENT AGREES! If you see anyone cheating by not telling you the rules, Tell us immediately!