Combo set, or not?

Most fitting carts only carry 6irons.. Therefor they are not great for people looking to combo set clubs. But here's my question, the ap2s would be a great club for me as it is more forgiving but for some reason I can not seem to hit it with any consistency.. Then I moved onto the cbs and could not miss them! I was htting them great, but I would like a combo set cb/mb.. I hit the mb 6iron good aswell just like the cb for the added forgiveness. If I can manage a cb 6iron well, would i be fine with mb 7-pw? I am a mid handicap who ruins rounds with a couple blow up holes.. I currently play miz mp58s but i cannot stand how 'clippy' they feel with the titanium insert, i love the feel of the cb and mb.

Question 1: Is there much difference if I would go with mbs in short irons?

Question 2: will I hit the mbs 7-pw without a problem if i hit the cb 6iron well?

Thank you.

Also, is it more expensive to get the combo set?

The great news about Titleist is they are not hung up on merchandising sets.  Unless your pro shop really wanted to dump a left over set on you, all Titleist clubs are a per each price. 

Just to note, the AP2s are a little more expensive per club than CB or MB.  So it is either more expensive to add an AP2 to a CB/MB set or less expensive to add CB/MB to an AP2 set. J

mb s all the way i love mine they are sooo sweet i used to play the mp58 the mb s are the better buy

Did it take time to get used to the decreased forgiveness? Or was it a smooth switch?

The general rule is sweepers like the MB more than the diggers.  At the cost of a new set, if you can find an Advanced fitting center if not a Regional center you might find something other than a 6  iron.  If you can get fit outdoors and try some shots above/below your feet, that should help you with how the transition would be.  ....Anyone can hit off of a flat surface..

very smooth almost no difference at all just make sure the shaft is fit for you i think you will really like the mb s