It's great that you're having 3-4 BMs a day without using the IF#1!
Yes, you can start the IF#2 without taking the #1 and you can continue to do without it as long as you maintain 3-4 BMs a day without it. The increased water you'll be drinking with the IF#2 will help with the BMs too.
If you find that once you start taking the #2 that you aren't going as much then you can always start adding in the IF#1 but there is nothing in them that requires you to use them in order to make the #2 work.
But.....lol, it's always good to do a 30 colon cleanse using both products because of the benefits you get with the IF#1. Below is the therapeutic action of both the IFs.
IF# 1 - This stimulating tonic is both cleansing, healing and strengthening to the entire gastro-intestinal system. It stimulates your peristaltic action ( the muscular movement of the colon ) and over time strengthens the muscles of the large intestine, halts putrefaction and disinfects, soothes and heals the mucous membrane lining of your entire digestive tract. This herbal tonic also improves digestion, relieves gas and cramps, increases the flow of bile which, in turn, cleans the gallbladder, bile ducts and liver, destroys Candida albicans overgrowth and promotes a healthy intestinal flora, destroys and expels intestinal parasites, increases gastrointestinal circulation and is anti-bacterial, anti-viral and anti-fungal.
IF# 2 - This cleansing and soothing formula is to be used periodically in conjunction with Intestinal Corrective Formula #1. This formula is a strong purifier and intestinal vacuum. This formula will draw old fecal matter off the walls of your colon and out of any bowel pockets. It will also draw out poisons, toxins, heavy metals such as mercury and lead, and even remove radioactive material such as strontium 90. This formula will also remove over 3,000 known drug residues. Its natural mucilaginous properties will soften old hardened fecal matter for easy removal and also make it an excellent remedy for any inflammation in the stomach and intestines.
Hope this helps.