Typical GPs (whatever that is) have similar blade areas and resistance to typical (whatever that is) euros. Cadence also is pretty similar.

There is a lot of variability - but taking the people who use smaller bladed GPs or prefer a higher cadence as the norm is a mistake.

Put simply, with no need for Latin: You've bought into some BS persistent misconceptions about GPs. I'm a bit surprised you didn't start talking about the mythical "low angle" stroke too. *L*

GPs vary in size and performance as much or more than euros - and allow as great a range of application (greater for many). Making them is pretty easy, making them well not quite so, and using them well that much more...

My first GP, and still a favorite, was an 88" Superior carbon. At the time I used a Werner San Juan - which is out of production but was a BIG blade euro (the Camano is that paddle scaled down to 85%). The surface areas of the blades of these paddles is nearly identical, as is the power available once you learn even fair GP technique.

The trick to GP is to drop euro habit and let it be a GP. That takes using one quite a bit. Using one like a euro, and compounding that error by using one that's poorly sized, and/or or poorly carved - and doing so only sporadically (and with a biased mind) - will have easily predictable results: Posts like yours spouting fallacies.

Also, in kayaks over 24" wide (includes all rec, WW, and Surf kayaks) don't even bother with GP (same goes for wing). Sure it will work, just not too well. Not what it was made for.

Kris