Link Masking for SEO Purposes

I am a noob, please go easy on me.

I have 2 questions:
1. Is there any way to block Link Juice from going to a page without using "nofollow"? I am using WordPress, and it needs to be fairly straightforward. I have a lead form/conversion page (among other pages), and I don't want to waste link juice on it. There will be a link to it from nearly every page, and it's a total waste

2. Does link masking serve any SEO purpose (other than masking affiliate links)? I am talking about the SEO Ultimate link mask generator, and the like. You create a directory /go. Block the pages in the /go directory via robots.txt. Tag the pages in the /go directory "noindex". Instead of linking to /example, you link to /go/example, and this 301 redirects to /example.

Does this keep Link Juice from flowing to the page, or is it a waste of time?

Let link juice alone. You will do more harm than good playing with it. If you have more than 100 pages just use nofollow.

Using nofollow will do everything you mentioned without risking Google penalizing your site.

There is a lot of risk and not a lot of reward by using link masking to do pr sculpting.

What is the problem with that. It is just increasing the internal links as well as user experience. Just leave as it is.

I would prefer to block via .htaccess rather than robots.txt (one forces, the other gives the option!)

You should just use no follow. I doubt there is a better way than that.
There are tons of WP plugins that can do what you are looking for.