Warrior sizing strictly goes by a Foot to Knee measurement. Its really foolproof
The other thing to remember that new pads will feel and fit far different than your V3s. Take your skates and maybe your pants to help fit proper. But the fit chart is dead on. I'm a 19.75 FTK and I wear a 33+1.5 with no boot strap.
The other recommendation I would make is getting an elastic toe tie. The Warrior ARS is okay, it can be snug. Pro Laces has a 10% off sale right now with a "TRAVSUCKS" coupon code. I have GT Pros and love them (and your hips, knee and ankles will thank you):