Nautos Main sheet low profile blocks

I am looking at the Nautos 92083 to replace the lower main sheet blocks on a 1982 H16. Has any had any experience with this model?

Specs:
92083 TRIPLE SWIVEL RATCHET WITH CAM AND BECKET , ALUMINUM SHEAVE
WORKING LOAD 1450 LBS
BREAKING LOAD 2300 LBS
ROPE LINE UP TO 1/2 "
SHEAVE DIAMETER 57 MM
WEIGHT 14.7 OZ

_________________
1979 Hobie (sold)
1983 Hobie 16 Hawiian Sunset (sold)
1981 Hobie 16 Tequilla Sunrise - still own
2008 Hobie 16 (currently sailing the crap out of this boat)
1977 Super Sunfish
Founding member of the "San Dimas Yacht Club"
John

I've used them for a few years for the upper and lower blocks. I've had no problems with them. Occasionally I throw them in a bucket of clean water. Other than that, no maintenance.

Jim Clark-Dawe