Rob,
You are correct. The smaller the number, the better the optics. 1/8-wave is better than 1/4-wave.
I have no experience using Discovery optics, but I offer this piece of advice. Seek out the ATM (amateur telescope makers) in your local astronomy club. They may have the know-how and tools to measure the "figure" of your mirror. I know one of my local area clubs did.
Lou
You are correct. The smaller the number, the better the optics. 1/8-wave is better than 1/4-wave.
I have no experience using Discovery optics, but I offer this piece of advice. Seek out the ATM (amateur telescope makers) in your local astronomy club. They may have the know-how and tools to measure the "figure" of your mirror. I know one of my local area clubs did.
Lou