I think as a small business and with all else going on these days, they are probably overwhelmed, at least I'll give them the benefit of the doubt this time.
Maybe small as in employees (Rated 11-50), but not in accomplishment and proven track record. They have a issue to be sure, and those that wish to jump ship can certainly do so. All I know is I have been flying their products for 30 years and have never had a issue even once.
If they are even at low number at the 11 employees then factor in Covid, they certainly are jumping through hoops to find this issue and address the probably 100's of customer complaints and emails. While complaints and manufacturing issues are indeed evident. I still say you won't find a better company (USA I might add) that has done more for this industry than them....maybe it's because I am a Veteran, but i don't see all the unnecessary whining and scolding of them...in a nut shell, step back or get your money back or replacements and move on gang IMHO.
We got more to worry about in this world right now than a company with manufacturing issues and "your pretty props" which BTW nobody can see when your flying

How about some of you guys man up a bit and give them some slack. Tell them that you have bad props but understand circumstances right now, and that you will contact them later for a replacement or refund and go from there with just a RMA number? Let's help America and these fine companies..what say ye?
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Founded by the U.S. Navy test pilot
Frederick Templeton Jamieson (1928-2009), Windsor Propeller company (est.1978) is specialized in manufacturing high quality Model Aircraft propellers from
Glass Fiber Reinforced Composite, Maple and Beach wood. All company products are designed and manufactured under the registered brand name
MASTER AIRSCREW in California, USA.
First Master Airscrew Propellers developed in 1976
With more than 3 decades of expertise,
Master Airscrew is one of the most recognized brands of Model Aircraft propellers and accessories worldwide. Precisely carved or injection molded, Windsor Propeller's blades have exceptional efficiency and low noise profile.
Starting in 2015, we have made a significant investment in brand new, state of the art manufacturing equipment from worlds most renown providers including fully computer operated Injection molding machines, 5 axis milling centers, CNC programed lathes, automated production monitoring and quality control peripheral equipment. We have completely redesigned our manufacturing processes and tooling, having utmost precision of less than ten thousands of an inch. (Remember Folks that these propellors were introduced post COVID as such they probably don't have the correct employees in place...yes their fault for rushing)
Product Range
Our extensive propeller range comprises as
the company has more than 250 different styles and sizes of propellers and sells Master Airscrew products on six continents grouped in 8 product series based on application,
size and characteristics. From light electric motors to 4 stroke gas and glow engines, we can satisfy almost every pilot's requirement. Propellers available from 5 to 24 inches in
pusher and tractor configurations for twin engine aircrafts and multi copters.
Our products are proudly named
Master Airscrew. Originating from the Latin word "Magnus", the word "Master" denotes dominant and great. "
Airscrew" is a technical term for a propeller. It is a combination of the two words "Screw" and "Air".
Master Airscrew means a dominant, supreme propeller which always outperforms its rivals in any flight or combat.