I have seen a lot of problems with new guys Learning to bed using Wax, Kiwi, and Johnson, as there is a very serious learning curve with the wax.
Brownell sells a product called Accra Release. You decrease the action twice with brake cleaner or engine starter(best), then spray on two coats of the Accra Release. You will NEVER have an issue with epoxy getting into the wrong areas, it comes out with just a flick of a small tool. After you have pulled the action from the stock, spray the brake cleaner on the action to wash off the release agent, which is super thin.
While the Accra release costs a little, it sure makes the job idiot-proof. I always apply two light coats, and screws also.
Many bedding jobs have been ruined because guys pull the action out of the stock too quickly. In a warm house, I let mine set up for three days without touching them, and 7 is even better, depending on the thickness of the pour. Accra Release eliminates the fear that the action will be glued in the stock.
When using q tips to remove the excess, I found that guys that use both ends of the Q tip get epoxy on their hands, and then on their stocks. I use one end of the Q tip, and throw it in the trash.
As the epoxy starts to harden, you can clean out around the mag well on BDL type of stocks.
I use the Modeling Clay from Brownell which does not dry out like Play Doe.