Any try these gas lifts for hatches on your boat?
https://www.homedepot.com/p/100N-22-lbs-Cabinet-Door-Lift-Support-Gas-Spring-Gas-Shock-Lid-Support-with-Installation-Screws-1-Pair-GAS-1/312639194?mtc=Shopping-VF-F_D25H-G-D25H-Multi-Multi-NA-Feed-PLA-NA-NA-GiftCenter&cm_mmc=Shopping-VF-F_D25H-G-D25H-Multi-Multi-NA-Feed-PLA-NA-NA-GiftCenter-71700000075416916-58700006462680269-92700058409314530&gclid=f9081a3be51615c579c645d0afb85bcc&gclsrc=3p.ds&msclkid=f9081a3be51615c579c645d0afb85bcc