Hello, I'm new to this forum, and I've been loooking for the answers to some of my questions about the H16 I bought recently.

First of all;
Does anyone have any tips on preventing a pitchpole in heavy winds when sailing downwind, I recently experienced this most unfortunate event and was taken back by how easily the boat seemed to flip?

Also;
I have old style jib cars with a micro fiddle block leading to an upside-down cam cleat, and it is nearly impossible for both my crewmate and I to uncleat the jib from anywhere on the boat besides climbing across the tramp to let out the jib. I was advised by a dealer to replace the cars with the new style with the eyelet and cam attached, but is there anyway to fix this problem?

Thirdly;
Performance-wise, is there a difference in the type of mainsheet block system used on the H16? When I bought the boat, it came with a 4:1 set probably for a H14, is it recommended to ugrade to a 6:1 or even 8:1, if so, where should i buy from?

Lastly;
Would anyone recommend installing a boom vang on the H16? On my boom, about 2 ft from the mast, there is a steel chainplate which looks like it could be used for a vang system, although I have never seen an H16 with a vang, would it be useful to put one in, and is it class-legal?

~Thank you in advance for your time and patience.