Re: sheet and winch placement
I sail a H28, a buddy has a C28, both of us have lines led to the cockpit. I make sure my mainsheet has enough length so that when standing at the helm I can loop it over the binnacle and thus always have it available for instant adjustments, in talking with my buddy and watching him sail he does the same. Its a simple matter to put a littel flip in the line to release it from the Jam cleat make my adjustment and then cleat it back down.
The jib sheets are on either side and can be easily reached without having to let go of the helm, again, easy adjustments. I just move to the side, put my butt against the wheel and adjust the sheets. Smae goes for the roller furling when needed.
My traveler isn't set up quite as well, (a project for this year). I can set the main sheet, set the jib and then lock the helm to move forward to adjust the traveler. Not ideal but by the time I'm ready for a traveler adjustment everything else is relatively stable.
All of this is from within the cockpit, meaning I'm safe, dry and generally don't have to leave the conversation when adjusting trim. Of course, if I've got crew on board to help with adjustments, I can aften put them at the helm, point them in the right direction and then do all my adjustments including setting up the lazy jib sheet for the next tack.
Biggest issue I've run into with lines led to the cockpit is previous owners who didn't want "extra" line so would cut them too short making some of the steps above hard to accomplish. I always try to end up with more line than needed when replacing running rigging. Its always easier to trim line than add length to it.
Figuring out the rythmn you need to make all the right adjustments and in what order is one of the things about a new boat. It takes a while but you will figure it out.
Fairwinds