I have a TT Pro.36, good engine, runs great, good transition, lots of power. APC 10X6 prop. 12,500 Rpm. I find the high & low needle settings a touch finicky so you have to be a bit patient there.
As for the MDS line, I've never owned one and have only read up on them, good and bad. I think they are probably an alright line of engines,may be not quite as user friendly as some other brands. I believe a number of fellows out there really don't know how to preform the proper engine adjustments and are not breaking in their engines correctly.
If you are new to the hobby, you may want to purchase something other's are using at your field and are familiar with to assist you.

Pat.