Credit Score Hack - Improving score with Personal Loan

[Jaz McDonald]

Hello! I am in the process of improving my credit score (currently at a 700), I am paying off debt, good income to debt ratio, an credit utilization on time payments, etc. 

But I would like to expedite the process..

I read briefly sometime ago from a Carlton Sheets manual “No Down Payment” a handy trick to improving credit. As I remember he suggests taking out a personal loan from a bank or credit union, deposit the money, and then use that same money to payoff the whole loan in the first billing cycle (and maybe any interest that occurs in that billing cycle). 

Is this a hack to improve credit? Do intuitions have a “seasoning time” before it would impact your credit, safeguards to prevent this at all? And hypothetically if any of this is true, could one do this month after month while staying within the ‘hard inquiry’ limits on a credit report, or at what point would you max out hard inquiries to negatively impacted your credit score?

Thanks so much!