Prop questions

[aztyler]

I need some help on prop advice for a brand Yamaha 250 Sho any body recommend where is the best place to buy legit props in the U.S. and also get some good advice on certain types as well. Running a sho vmax 25 pitch now and having major issues of not coming out of the water at 4,000 foot in elevation. Curious on 4 blades as well as pitching down to 24 or even a 23. Thank you for any advice

[reellittlephish]

Location?