Replacing a humongous 1x15 + 4x10 rig with something smaller is always going to present tonal variances/problems. The amount of air being moved by that trace rig and the height at which it is moved compared to the MB will always be a skewed contest, even before you get into amp and speaker voicing. As has been mentioned, sorting the VLE & VPF settings and adding some other form of EQ manipulation may help (as the TE has a graphic, I’d add a graphic EQ pedal) but it may transpire that MB speaker voicing isn’t for you.
As to what you could try as an alternative brand, I’m afraid I can’t help you there as I’ve only played three rigs live: Ashdown ABM 2x10 combo + 2x10 cab (nice, bit scooped, heavy and cumbersome despite neodymium drivers); MB LM2 + Schroeder 2x12 (great ‘in the mix’ rig, very mid centric, somewhat aggressive); Phil Jones Flightcase + PJB powered cab (10x5 total) - clean, accurate, super light. The nicest stuff I’ve heard in a shop has been Aguilar, but that’s not a proper test IMO.
EDIT: I’ve played Rhythm Stick for years and it took a lot of practice to get up to speed accurately. The other day I thought I’d play it with a pick, just for laughs. Damn! I should’ve tried it years ago and saved my, at the time, aching hand. 😂