As much as I try to use my harness effectively, I suffer from painful forearms which is reducing my time on the water.

I am using a 27mm boom but have never used a narrow grip boom at 24 to 25mm.

I have shortlisted:
- AL360 Carbon Slim 140-190 25mm v-grip
- Chinook RDG 135-185 24.5mm
- North Megaslim 140-180 24mm

Would be great to hear any feedback for the 25mm V-grip compared to my other shortlist options or other narrow grip booms such as:
- Severne Enigma 140-190 25mm
- Goya Super Skinny 140-190 24.5mm

Will a 25mm V-grip be more comfortable than a 24mm round-grip?

All measurements exclude grip.