No, legacy recruiters don't score airbus or MD80 SIC any higher than the Embraer 170 SIC time you're getting now. E170 PIC is worth more than A320 SIC. The only value in making a jump for your goals would be to get a PIC type in a 75/76 and log SIC. This moves you to the top of the app stack at FedEx and helps your odds at UPS and United but G4 isn't hiring into the 757. G4 will be a career airline if this TA gets signed in with top CA rates over $230/hr and an average of 200 hours less time away from base per month vs the average legacy schedule. You hit a sweet spot in timing with this industry and your young age, good luck to you.