If you commit to the HO with the Bf109s in your scenario you get one shot and one shot only, you'll never make it back before they have attacked. If you do a lead turn you will be right behind the Bf109s and can put pressure on many of them.
It's simple really, as noted, you have ONE SHOT at the attackers before they get to the bombers... if you fail to take it, they WILL all attack the bombers ... putting "pressure" on them is NOT the job and isn't going to save any bombers ... The escorts job after they meet the threat is to reverse and force the 109s out of position preventing them from doing it again ... NOT to chase them down ... Unless they are under attack themselves, they are to break off and return to the bombers.
Remember, the '51s would not be doing close escort, co alt and speed with the bombers, so don't make a fake scenario where they have to respond from such a position.
? Wouldn't be doing close escort ? DUH ... Close escort generally flew around 500 ft above the bombers and used racetrack and weave manuvers to stay in position. 51s were the plane of choice for that job ... High escort (2,000 -5,000 ft) had other jobs, if possible they'd prevent those 109s from making an organised attack ... THEY might go in on the 109s that got past the close escort -IF POSSIBLE- but given the number of bombers being escorted, there were always holes in the high escort ... (which is WHY there WAS a close escort) 51s were preferred, lots of 38s were used, 47s were sometimes used in both roles, but had limited range.
