Hi there! Good question - there's been alot of posts on this topic throughout the forum. Generally people are either for, against, or neutral when it comes to gelling vs. not gelling. I've done both - and I'm a fan of gelling. When I use individual molds - my bars never gel, and for an individual shaped bar - I prefer it not to gel... it looks nicer aesthetically for a 'shaped' bar. And for some reason, the texture is more smooth and slick. When I make large batches in a block/slab mold - and cut the brick into smaller bars, I prefer gel... so i insulate to make sure the gel is not partial. From all the people that come from a chemistry background that I've spoken to - gelling seems to allow the soap to saponify quicker and more thoroughly in a shorter time period. But you may find other chemists who say otherwise... I tend to lean towards the former difference of opinion. At the end of the day, whether you gel or not - a well formulated bar of soap that is made correctly, will be a delight after proper curing. So I suppose the best advice I can give you, is to make sure you either fully gel, or prevent it entirely... whilst some people like the half/half look - - - it's seen as less than professional, and people that use your soap will be sure to ask you why the bar looks odd.
Happy soaping!