Just switched from a straight - need advice

[JohnG10]

I'm using a knock-off of the Gillette Superspeed (Micro Touch One) and Dorko platinum blades. The razor has a nice weight (brass head & handle) and seems to have good machining (blade sits flat and have even exposure on both sides).

The razor is very mild, and requires 3 passes - but I get a closer shave than using 2 passes with a straight. I'm using the same soap and lather hydration as with my straight, and no pressure at all.

With my straight, I've never been able to get BBS on the neck because the whiskers grow sideways. With the DE, ATG is possible on the neck and I get BBS.
However, I'm getting razor burn on the neck, and a few weepers on the chin groove and upper lip curve.

The shaving sound is the same as my full hollow straights, so I think the angle is OK. I carefully used no pressure today and still got razor burn on my neck.

Is it likely that a more aggressive razor that would do BBS with 2 passes rather than 3 (like my straights) or a different blade would fix the problem?

Or is it likely I just need more time to perfect my technique (although it doesn't seem much different than using my straights - which I've been using daily about 3.5 years) ?

Thanks for the help !