30 lb Density HDU is not common. Many suppliers are reluctant to stock it for that reason. But I believe it well worth the effort to get it in. It is so much stronger than lighter weight HDU's. It is much more resistant to dents, hail, birds pecking it, flying rocks or golf balls and just about anything else that might harm our signs. There is nothing more frustrating than working on a project for hours and hours only to bump it accidentally, making a repair instantly necessary. Repairs take time and cost money. That's profits! To much to take a chance in my view.
Heavier density boards certainly hold detail well - much better than lower density boards. And I LOVE detail in our work. Textures route beautifully in 30 lb Precision Board and I can run our router just as quickly as the lighter weight boards. Working it by hand does require a little more effort. I would argue that the extra investment of the heavier weight board more than offsets the cost of labor saved when it comes to priming and painting the signs.
It's easy to sell too. REAL EASY. I keep samples of 15, 18 and 20 lb Precision Board handy in my sales area. When a customer is talking about a sign I'll grab one of the lighter weight samples and run my finger nail into it leaving a nasty groove. Then I'll hand my customer a sample of the 30 or 40 lb board which I also keep handy and ask them to do the same. They can't make a mark. I explain that this material certainly costs more but is worth the investment for obvious reasons. It's always an instant sale.
Most of all I love the peace of mind 30 lb Precision Board offers.