Personally, I'd upgrade your servos, to something that will carry over to one of these other designs that you have your eye on. If you question your servos in this plane, they will be the same in another plane. I hate buying servos, but I've recently learned to get good servos from the start and you won't be wondering if you need to replace them. This is just my opinion, take it with a grain of salt. I need to get a Venus II. I've flown one with a Saito 1.25 and would love to try one out with a YS 1.10 or OS 1.20 AX.