Old story worth repeating:
Pillion and myself went into Naults Honda in Windham NH, a local Power Sports shop to look at helmets. The game plan was to try them on, then go home and order online. The staff left us alone to decide what we liked without bugging us, then offered to fit the helmets. The were actually knowledgeable and helpful
They helped get the basic fit correct, then helped fine tune the fit with various cheek pads and actually gave us a great fit. Now I felt a bit guilty after they spent so much quality time with us and actually gave us the correct fitting helmet. I never had a helmet fit so well. So, I told them what price I could get the same helmet for online and asked if they could help close the price gap. The staff went and talked to the boss (making me feel like I was in a car dealer's lot). But, surprise, surprise, they actually met the online price and further more, swapped the cheek pads for some smaller pads that were in stock at no cost.
To make a short story long, it may be worth while stopping by a
good shop and see what they can do to help you get you a good fit. I never would have known about or bothered with trying cheek pads without their help. I always thought I was getting a good fit but discovered there is -- better. Our last set of helmets came from the same shop and they gave us the same fitting session and the same online deal.