The search bar is your friend. Use the search bar near the top of this page ,right hand side. Type in there "TPA M-Type" with quotes.That will bring up threads for your Marlbaro flavoring. Manufacturer is TPA short for The Perfumer's Apprentice.Fastest way to get the info you need.
DIY requires alot of experimentation to find percentages for each flavoring from each manufacturer to find what percentage is palatable to you.
EM or ethyl maltol is essentially cotton candy flavoring. You can buy it mixed or make your own with crystals and PG(1/4 tsp. crystals - 10 mil.pg) It acts as a sweetener though not as sweet as sucralose. Many like it in their mixes.Try making multiple 3 mil batches with your m type . For instance , one bottle with 1% flavoring,one with 2%, one @ 3% . It is noted by many that this flavor is very strong.When you make it up, let it sit for about 5 days to mature.Then taste.
Many people that never tried DIY don't believe in steeping juice . Fresh made liquid takes on a different character over time .It may taste weak when you first make it.Resist adding more flavoring. If you fail to do the necessary step of making multiple batches for each flavor ,it wil be very difficult to achieve success making your own. Good luck.