So I tried a test of 50 SP and i estimate I will be receiving about 5 Invites, dont quote me as this number can be effected by some extra variables but I think if another user delegating 600Sp on the 24th (Today) is getting 63 Steem Account invites on the next payout period (July 7th so in 2 weeks) then I should be getting about 5 steem accounts in 2 weeks :D
Here I am using teh VERY simple process to click a few buttons to delegate I used Steem keychain by
https://chrome.google.com/webstore/detail/steem-keychain/lkcjlnjfpbikmcmbachjpdbijejflpcm?hl=en
By using steem Keychain extension (Like metamask for steem) was able to delegate even easier than steemconnect!
This is a great addition to anotehr simple to use tool for creating FREE accounts using RC mana or paying 3 steem 
Imagine if reddit or facebook allowed its users to actually create new accounts! We Really are an advanced piece of technology, steem and the people who run it, we are like a human neural network, each passing hardfork syncing all of our minds closer together, and steem will eventually be recognized for its accomplishments even if its not that financially profitable for that many people yet....I think it can still be purchased someone like google of facebook who WILL recognize steem's value. and i think facebook would definitely keep us around in their back pocket as a sort of charity organization curation good content with top facebook users delegated from neds new big stake... a facebook branding on all of steemit dapps would help market steem more than anything! People hate on them but facebooks brand would propel steem price to new levels :D