'Fair Isle' Sock

So I bought yarn from the LYS that automatically makes fair isle patterns. I have been avoiding it because it was expensive, but I decided to make socks for my boyfriend's brother's birthday (could I have any more b's). It was a little expensive, $18 for the skein. I like it, but not enough to buy it again. I was looking at the different choices, and they are all the same pattern just diffrent colors. Also I am using a pattern that I got from an online free sock pattern generator. It had options to choose a round heel or a dutch heel. The heel flap pattern was Row 1: k1, sl1 Row 2: sl1, p1. I realized that since the flap is worked on an even number of sts that one side will be knit/purled every row while the other will be slipped every row. So I changed it to Row 1: k1, sl1 Row 2: p1, sl1. This worked but the sts were very tight. I then followed that pattern's direction for turning the heel. It looks fine when not on a foot, but I tried it on my boyfriend and the heel doesn't fit right. It just kinda sits on the heel, but doesn't fit around the heel like it should. There are two little flaps on the sides of the heel which seems to be from the heel turning, the heel flap fits fine. I have decieded to rip it out and find a sock pattern with a round heel and just use that pattern. I am kinda sad to have to rip out all that work because it took me a couple hours to do it, but I want to make a nice sock and not one that is a little flabby. Socks can be flabby , right?