After returning to the fountain pen world a year or so ago, I started trying out lots of pens. I've tried maybe a dozen brands, but my favorites are still Parkers. I'm thinking now that I'd like to add Parkers to my collection, instead of picking up this or that other brand to try. I inherited a couple of Parker 51s that I use sometimes but don't love. The 51 is a little thicker and heavier than I like. They also have M nibs and I've discovered that my small handwriting does better with F or even, occasionally, EF nibs. I really like the Rialto/88 model, as far as thickness and weight. I'd like more of those, but not only those. What Parker models would you recommend that are similar to the Rialto/88 in thickness and weight? Tery