Land/Fly Sped Calculation Issue

[SHeston]

I have a hybrid license with PF 1e ruleset. I have provided the pertinent PC details for the necessary Land/Fly Speed calculations. The issue seems to occur when the Armor ON (Adjusted Speed) and Fly Speed calculations that are in question - see Configurations #3 and #4 below.

I imported the Classic .por file to my Online account and verified both systems are calculating the same. My DM does not use HL and he is just as perplexed and I am and we have dug into the PF 1E sourcebook rules to understand the discrepancy between HL's calculations and what we expect.

What are we missing? Any assistance is greatly appreciated.

Pertinent PC Details:
Half-Fiend Drow Bloodrager 4/Champion 1
Base Land Speed: 30 ft
Fast Movement (Bloodrager): +10 ft
STR: 20 (+5); DEX: 16 (+3)
Fly Skill: +14 = +4(Ranks)+3(Class Skill)+3(DEX)+4(Good Manuverability)
+11 = +4(Ranks)+3(Class Skill)+3(DEX)+4(Good Manuverability)-3[ACP(Armor Worn)]
Encumberance @ 49 lbs [Light Load <=133 lbs; Med Load <=266 lbs; Heavy Load <= 400 lbs]
Carrying: +1 Breastplate (30 lbs); +1 Bardiche (14 lbs); Handy Haversack (5 lbs)
Armor: +1 Breastplate (Slows)
Mythic Path Ability - Impossible Speed
No Adjustments or Conditions of any kind are Active

Configuration #1: [Armor OFF and NO Mythic Point Burn]
Land Speed: 70 ft [Base Land Speed @ 30 ft, Bloodrager - Fast Movement @ +10 ft, Impossible Speed @ +30 ft]
Fly Speed: 140 ft [Land Speed x2]
* Note: HL Calcs shown. Expectation - Land Speed: 70; Fly Speed: 140 ft)

Configuration #2: [Armor OFF and 1 Mythic Point Burn]
Land Speed: 80 ft [Base Land Speed @ 30 ft, Bloodrager - Fast Movement @ +10 ft, Impossible Speed @ +30 ft, Impossible Speed (MP): +10 ft * Tier (x1) for 1 Hr]
Fly Speed: 160 ft [Land Speed x2]
* Note: HL Calcs shown. Expectation - Land Speed: 80; Fly Speed: 160 ft)

Configuration #3: - [Armor ON and NO Mythic Point Burn]
Land Speed: 70 / 50 ft [Base Land Speed @ 30 ft, Bloodrager - Fast Movement @ +10 ft, Impossible Speed @ +30 ft, Breastplate Armor Speed Adj @ -10 ft]
Fly Speed: 140 ft [Land Speed x2]
* Note: HL Calcs shown. Expectation - Land Speed: 70 / 60; Fly Speed: 120 ft)

Configuration #4: - [Armor ON and 1 Mythic Point Burn]
Land Speed: 80 / 55 ft [Base Land Speed @ 30 ft, Bloodrager - Fast Movement @ +10 ft, Impossible Speed @ +30 ft, Breastplate Armor Speed Adj @ -10 ft, Impossible Speed (MP): +10 ft * Tier (x1) for 1 Hr]
Fly Speed: 160 ft (Good) [Land Speed x2]
* Note: HL Calcs shown. Expectation - Land Speed: 80 / 70; Fly Speed: 140 ft)