This is a USAF-created procedure. I am looking in the legend of the DOD FLIP now, and for teardrop turns they are also giving a turn altitude. Looking at the legend, the turn altitude is 2200 minimum. The AFMAN 11-217V1, the USAF's Instrument Flight Bible, states that this altitude is minimum until established on the inbound segment. (Ref Dod FLIP Legend and the AFMAN 11-217V1 (chapter 13.9.4.2)).
But since that extra initial approach segment is there, it seems more cluttered; I would definitely treat the 2200 as a minimum for the teardrop procedure until established inbound, and if I was flying from the IAF "TBG" I would treat the altitude as minimum until established AND at TBG 8 DME.
The above post is probably the most conservative and safest way to read this procedure... My 2 cents...