I've opted to change out the gear boxes with McLennan 125:1 ratio. ?I have one unit arriving tomorrow and will be ordering a second. I was able to successfully change the controller settings for the gear box values to 125 and set the steps per worm revolution to 32000. I guess the speed settings need to be divided by 5, except for Guiding speed which I've kept at 0.8. Everything ran OK. So 0.112 arc sec per step. Less expensive than changing the encoders.
