Carrell,

Yes you are right, I am trying to keep this project within a certain budget.

Although I have been trying to standardize around four-stroke engines, I couldn't pass up the performance of the TH .75 at its $100 price tag which is why I had originally ordered it. Now that I cannot get it, I thought why not go for a ASP .91 FS which is very reasonably priced at $150 delivered. Reading some of the posts however, I started wondering whether or not a larger FS engine would be desirable, so after looking around a little I found a ASP/Magnum 1.2 for around $230 delivered. Problem is, this engine weighs about 1 kg (30+ Oz) and knowing the Big Stik already builds nose heavy, that would mean a lot of lead in the tail. I am trying to finish this plane ASAP so I'd rather stay away from doing surgery to it and moving servos around. The other thing I question is, can the larger prop of the 1.2 FS engine leave enough ground clearance.

As another option, I actually do have a brand new Saito .91 that I'd bought some time ago, but that is already installed on a brand new 4*-sixty and I don't feel like making modifications to that plane.

With all that said, at this point my options are:

1. ASP .91 for $150
2. ASP 1.2 for $230
3. Get a budget two-stroke such at the GMS .76
4. Use my .91 Saito and make surgery to my almost-finished 4*

Shouldn't be that hard a decision and I have already been procrastinating enough, so I'll make a choice today and move on. Meanwhile, anyone with opinions please chime in!