What do you think about summing the pitch and diameter of a prop and using that figure to quantify prop load? It seems to make sense to me based on how 'they' say to drop an inch diameter when increasing the pitch by an inch.
For example:
15x8=23
15x10=25
16x8=24
16x6=22

So the 110 would range from a 22-25 load. Obviously this is only for 2 blade props. I thought this would be a decent way to be able to compare two and four stroke engines since their power bands are different.